Pierre BOUDRY

Combining Two-Stage Testing and Interval Mapping Strategies to Detect QTL for Resistance to Bonamiosis in the European Flat Oyster Ostrea edulis (2009)

LALLIAS, Delphine, Gomez-Raya, L., Haley, C. S., ARZUL, Isabelle, HEURTEBISE, Serge, Beaumont, A. R., ...

We have identified quantitative trait loci (QTL) in the flat oyster (Ostrea edulis) for resistance to Bonamia ostreae, a parasite responsible for the dramatic reduction in the aquaculture of this...

Generation and analysis of a 29,745 unique Expressed Sequence Tags from the Pacific oyster (Crassostrea gigas) assembled into a publicly accessible database: the GigasDatabase (2009)

Fleury, Elodie, Huvet, Arnaud, Lelong, Christophe, De Lorgeril, Julien, Boulo, Viviane, Gueguen, Yannick, ...

Abstract Background Although bivalves are among the most-studied marine organisms because of their ecological role and economic importance, very little information is available on the genome...

Generation and analysis of a 29,745 unique Expressed Sequence Tags from the Pacific oyster (Crassostrea gigas) assembled into a publicly accessible database: the GigasDatabase (2009)

FLEURY, Elodie, HUVET, Arnaud, Lelong, Christophe, DE LORGERIL, Julien, BOULO, Viviane, GUEGUEN, Yannick, ...

Background: Although bivalves are among the most-studied marine organisms because of their ecological role and economic importance, very little information is available on the genome sequences of...

Ostreid herpes virus 1 infection in families of the Pacific oyster, Crassostrea gigas, during a summer mortality outbreak: Differences in viral DNA detection and quantification using real-time PCR (2009)

SAUVAGE, Christopher, PEPIN, Jean-Francois, LAPEGUE, Sylvie, BOUDRY, Pierre, RENAULT, Tristan

Ostreid herpes virus 1 (OsHV-1) infections, notably reported in Europe and the USA, are closely associated with significant mortalities of the Pacific oyster, Crassostrea gigas, especially during its...

Identification and characterization of 18 novel polymorphic microsatellite makers derived from expressed sequence tags in the Pacific oyster Crassostrea gigas (2009)

SAUVAGE, Christopher, BOUDRY, Pierre, LAPEGUE, Sylvie

We report the development of 18 new polymorphic microsatellite DNA markers derived from Crassostrea gigas expressed sequences tags. Genotyping of 48 wild adult oysters sampled from Marennes-OlEron...

Characterization of 27 microsatellite loci in the European flat oyster Ostrea edulis (2009)

LALLIAS, Delphine, Stockdale, Ruth, BOUDRY, Pierre, Beaumont, Andy R., LAPEGUE, Sylvie

The flat oyster Ostrea edulis is native to Europe and populations have been severely depleted by the parasite Bonamia ostreae since the 1980s. Additional genetic markers are required to improve...

Infestation of the cupped oysters Crassostrea angulata, C. gigas and their first-generation hybrids by the copepod Myicola ostreae: differences in susceptibility and host response (2009)

Batista, F. M., BOUDRY, Pierre, Dos Santos, A., RENAULT, Tristan, Ruano, F.

We Studied the prevalence and intensity of the parasitic copepod Myicola ostreae in 2 closely related oysters Crassostrea angulata and C. gigas and their F1 hybrids. The effects on host and host...

Bonamia ostreae-induced mortalities in one-year old European flat oysters Ostrea edulis: experimental infection by cohabitation challenge (2008)

LALLIAS, Delphine, ARZUL, Isabelle, HEURTEBISE, Serge, FERRAND, Sylvie, CHOLLET, Bruno, ROBERT, Maeva, ...

Bonamiosis is a parasitic disease (causative agent: Bonamia ostreae) affecting the European flat oyster Ostrea edulis, responsible for a drastic decline in its aquaculture production. Selective...

Association among growth, food consumption-related traits and amylase gene polymorphism in the Pacific oyster Crassostrea gigas (2008)

HUVET, Arnaud, JEFFROY, F, FABIOUX, C, DANIEL, Jean-Yves, QUILLIEN, Virgile, VAN WORMHOUDT, A, ...

To examine further a previously reported association between amylase gene polymorphism and growth in the Pacific oyster Crassostrea gigas, ecophysiological parameters and biochemical and molecular...

Scanning the genome of the Pacific cupped oyster, Crassostrea gigas, for adaptative differentiation during geographic range expansion (2008)

ROHFRITSCH, Audrey, BIERNE, Nicolas, BOUDRY, Pierre, HEURTEBISE, Serge, LAPEGUE, Sylvie

Originating from the north eastern Asia, Crassostrea gigas has been introduced and translocated, mainly for aquaculture purpose, into several European countries (from Norway to Portugal and in the...

Genetic basis of gametogenesis in diploid and triploid Pacific oysters, Crassostrea gigas (2008)

NORMAND, Julien, ERNANDE, Bruno, BOUDRY, Pierre

Today, triploidy is the most common method used to genetically improve marine bivalve aquaculture production. In the Pacific oyster Crassostrea gigas, triploidy affects many traits. The most...

Bonamia-ostreae induced mortalities in one-year old European flat oysters Ostrea edulis: experimental infection by cohabitation challenge (2008)

LALLIAS, Delphine, ARZUL, Isabelle, HEURTEBISE, Serge, FERRAND, Sylvie, CHOLLET, Bruno, ROBERT, Maeva, ...

Bonamiosis is a parasitic disease (causative agent: Bonamia ostreae) affecting the European flat oyster Ostrea edulis, responsible for a drastic decline in the aquaculture production of this oyster...

Microsatellites development in Ostrea edulis and Mytilus edulis (2008)

LALLIAS, Delphine, STOCKDALE, Ruth, LAPEGUE, Sylvie, BOUDRY, Pierre, BEAUMONT, Andy

The European flat oyster Ostrea edulis and the blue mussel Mytilus edulis are both very valuable commercial species across Europe. Despite their economical importance, only a few microsatellite...

Genomic of adaptation of the Pacific cupped oyster, Crassostrea gigas, in the context of its geographic expansion (2008)

ROHFRITSCH, Audrey, BIERNE, Nicolas, BOUDRY, Pierre, HEURTEBISE, Serge, LAPEGUE, Sylvie

Originating from the north eastern Asia, Crassostrea gigas has been introduced and translocated, mainly for aquaculture purpose, into several European countries (from Norway to Portugal and in the...

Genetic structure at different spatial scales in the pearl oyster (Pinctada margaritifera cumingii) in French Polynesian lagoons: beware of sampling strategy and genetic patchiness (2008)

ARNAUD, Sophie, VONAU, Vincent, ROUXEL, Catherine, BONHOMME, Francois, PROU, Jean, GOYARD, Emmanuel, ...

In order to study further the genetic structure of the pearl oyster Pinctada margaritifera in French Polynesia with a special consideration for the sampling scale, we analyzed or re-analyzed sets of...

Comparative histological study of gametogenesis in diploid and triploid pacific oysters (Crassostrea gigas) reared in an estuarine farming site in France during the 2003 heatwave (2008)

NORMAND, Julien, LE PENNEC, Marcel, BOUDRY, Pierre

We compared the temporal dynamics of gametogenesis in diploid and triploid Pacific oysters (Crassostrea gigas) using histology. Oysters were reared in an estuarine farming site in Brittany over 3...

Genetic impact of the reproduction dynamics in the European flat oyster Ostrea edulis (2008)

LAPEGUE, Sylvie, TARIS, Nicolas, LALLIAS, Delphine, BONHOMME, Francois, BOUDRY, Pierre

The European flat oyster (Ostrea edulis L.) is a marine bivalve whose natural geographical distribution ranges along the Eastern Atlantic coast from Norway to Morocco, in addition to the...

Mapping QTL for resistance to summer mortality in the Pacific oyster Crassostrea gigas (2008)

SAUVAGE, Christopher, HEURTEBISE, Serge, DE KONING, D., HALEY, Chris, BOUDRY, Pierre, LAPEGUE, Sylvie

Summer mortalities of the Pacific cupped oyster Crassostrea gigas have been described in the literature for decades. One solution to overcome this problem would be to select animals more tolerant to...

Comparative study of shell shape and muscle scar pigmentation in the closely related cupped oysters Crassostrea angulata, C. gigas and their reciprocal hybrids (2008)

BATISTA, Frederico, BEN-HAMADOU, Radhouan, FONSECA, Vera, TARIS, Nicolas, RUANO, Francisco, REIS-HENRIQUES, Maria, ...

The taxonomic status of the cupped oysters Crassostrea angulata and C. gigas has received considerable attention in the last decades. Based on larval shell morphology, experimental hybridization,...

Mapping QTL for resistance to summer mortality in the Pacific oyster Crassostrea gigas (2008)

SAUVAGE, Christopher, HEURTEBISE, Serge, DE KONING, D., HALEY, Chris, BOUDRY, Pierre, LAPEGUE, Sylvie

Summer mortalities of the Pacific cupped oyster Crassostrea gigas have been described in the literature for decades. One solution to overcome this problem would be to select animals more tolerant to...

QTL mapping for resistance to bonamiosis in the European flat oyster Ostrea edulis (2008)

LALLIAS, Delphine, BEAUMONT, Andy, HALEY, Chris, HEURTEBISE, Serge, BOUDRY, Pierre, LAPEGUE, Sylvie

A breeding programme has been undertaken by Ifremer to produce selected Ostrea edulis families which are resistant to Bonamia ostreae, a parasite which is the most significant constraint on...

Increasing genomic information in bivalves through new EST collections in four species: development of new genetic markers for environmental studies and genome evolution (2008)

Tanguy, Arnaud, Bierne, Nicolas, Saavedra, Carlos, Pina, Benjamin, Bachère, Evelyne, Kube, Michael, ...

The generation of EST information is an essential step in the genomic characterisation of species. In the context of the European Network Marine Genomics, a common goal was to significantly increase...

Single Nucleotide polymorphisms and their relationship to codon usage bias in the Pacific oyster Crassostrea gigas (2007)

SAUVAGE, Christopher, BIERNE, N, LAPEGUE, Sylvie, BOUDRY, Pierre

DNA sequence polymorphism and codon usage bias were investigated in a set of 41 nuclear loci in the Pacific oyster Crassostrea gigas. Our results revealed a very high level of DNA polymorphism in...

Characterisation of physiological and immunological differences between Pacific oysters (Crassostrea gigas) genetically selected for high or low survival to summer mortalities and fed different rations under controlled conditions (2007)

DELAPORTE, Maryse, SOUDANT, P, LAMBERT, C, JEGADEN, M, MOAL, Jeanne, POUVREAU, Stephane, ...

Within the framework of a national scientific program named "MORtalites ESTivales de l'huitre creuse Crassostrea gigas" (MOREST), a family-based experiment was developed to study the genetic basis of...

Modulations of the interactions between pacific cupped oyster Crassostrea gigas and Vibrio according to bacterial virulence and to genetic and physiological status of the host : Methodology and first results (2007)

DE DECKER, Sophie, NORMAND, Julien, DUPERTHUY, Marylise, BOUDRY, Pierre, SAULNIER, Denis

Rearing of Crassostrea gigas is the most economically important aquaculture activity in France. Bacteria belonging to Vibrio genus constitute one of the most abundant bacterial group in marine...

"First class oysters" : progress and constgraints in genetic improvement of the Pacific oyster (Crassostrea gigas) (2007)

BOUDRY, Pierre

The most significant genetic improvement for the production of Pacific oyster (Crassostrea gigas) up until now has been obtained through the production of triploids, particularly since the...

Physiological and molecular basis of gametogenesis in triploid Pacific oysters, Crassostrea gigas (2007)

NORMAND, Julien, HUVET, Arnaud, FABIOUX, Caroline, RAGUENES, Morgane, BOUDRY, Pierre

Genetic improvement of the Pacific oyster, Crassostrea gigas, can be achieved through triploidisation, which leads to partially sterility, allowing higher growth and survival together with improved...

QTL mapping for resistance to Bonamiosis in the European flat oyster Ostrea edulis (2007)

LALLIAS, Delphine, BEAUMONT, Andy, HALEY, Chris, HEURTEBISE, Serge, BOUDRY, Pierre, LAPEGUE, Sylvie

The flat oyster Ostrea edulis is an endemic European oyster species, found on both Atlantic and Mediterranean coasts. Its aquacultural production has dramatically decreased due to two successive...

Oocyte activation in Mytilus edulis by Crassostrea gigas spermatozoa (2007)

MCCOMBIE, Helen, CORNETTE, Florence, BEAUMONT, Andy, BOUDRY, Pierre

The development of hatchery production techniques for blue mussels is receiving increased research attention in Europe as it could offer an alternative source of spat for the industry ('Blue Seed'...

Evidence of response to unintentional selection for faster development and inbreeding depression in Crassostrea gigas larvae (2007)

TARIS, Nicolas, BATISTA, F, BOUDRY, Pierre

Underlying consequences of domestication and artificial selection still remain largely unexplored in most aquacultured species. For species with a two phase life cycle, including the Pacific oyster...

Genetic polymorphism of glutamine synthetase and delta-9 desaturase in families of Pacific oyster Crassostrea gigas and susceptibility to summer mortality (2007)

DAVID, Elise, BOUDRY, Pierre, DEGREMONT, Lionel, TANGUY, Amelie, QUERE, N, SAMAIN, Jean-Francois, ...

Large-scale mortality events have been observed in Pacific oyster Crassostrea gigas on the west coast of France since the early 1980s, particularly during summer. In order to understand the causes of...

What role for genomics in fisheries management and aquaculture? (2007)

WENNE, Roman, BOUDRY, Pierre, HEMMER-HANSEN, Jakob, LUBIENIECKI, Krzysztof P., WAS, Anna, KAUSE, Antti

The development and application of genomics has been facilitated in a number of fields by the availability of new methodologies and tools, such as high throughput DNA sequencing and complementary DNA...

Hemocyte characteristics in families of oysters, Crassostrea gigas, selected for differential survival during summer and reared in three sites (2007)

LAMBERT, Christophe, SOUDANT, Phillippe, DEGREMONT, Lionel, DELAPORTE, Maryse, MOAL, Jeanne, BOUDRY, Pierre, ...

High variability among individuals is often encountered when hemocyte characteristics are measured in bivalves. Such variability is suspected to result partly from genetic factors. In this study,...

Genetically based resistance to summer mortality in the Pacific oyster (Crassostrea gigas) and its relationship with physiological, immunological characteristics and infection processes (2007)

SAMAIN, Jean-Francois, DEGREMONT, Lionel, SOLETCHNIK, Patrick, HAURE, Joel, BEDIER, Edouard, ROPERT, Michel, ...

Summer mortality of Pacific oysters is known in several countries. However no specific pathogen has been systematically associated with this phenomenon. A complex combination of environmental and...

AFLP-based genetic linkage maps of the blue mussel (Mytilus edulis) (2007)

LALLIAS, Delphine, LAPEGUE, Sylvie, HECQUET, Celine, BOUDRY, Pierre, BEAUMONT, A

We report the construction of the first genetic linkage map in the blue mussel, Mytilus edulis. AFLP markers were used in 86 full-sib progeny from a controlled pair mating, applying a double...

Genetic variability of respose to pathogens : a tool to improve health of farmed fish and molluscs (2007)

QUILLET, Edwige, BOUDRY, Pierre, LAPEGUE, Sylvie

Controlling health of livestock has become of considerable importance to the aquaculture industry. Selective breeding of animals with increased resistance to pathogens is likely to complete...

A first generation genetic linkage map of the European flat oyster Ostrea edulis (L.) based on AFLP and microsatellite markers (2007)

LALLIAS, Delphine, BEAUMONT, A.R., HALEY, C.S., BOUDRY, Pierre, HEURTEBISE, Serge, LAPEGUE, Sylvie

This study presents the first genetic linkage map for the European flat oyster Ostrea edulis. AFLP and 20 microsatellite markers were genotyped in a three-generation pedigree comprised of 2...

Mark-recapture cloning: a straightforward and cost-effective cloning method for population genetics of single-copy nuclear DNA sequences in diploids (2007)

BIERNE, N, TANGUY, A, FAURE, M, FAURE, B, DAVID, E, BOUTET, I, ...

We describe a simple protocol to reduce the number of cloning reactions of nuclear DNA sequences in population genetic studies of diploid organisms. Cloning is a necessary step to obtain correct...

Interspecific hybridization in oysters: Restriction enzyme digestion chromosome banding confirms Crassostrea angulata x Crassostrea gigas F1 hybrids (2007)

LEITAO, A, CHAVES, R, SANTOS, S, GUEDES PINTO, H, BOUDRY, Pierre

The taxonomic status of the two commercially important cupped oysters, Crassostrea angulata, the Portuguese oyster (Lamarck, 1819) and Crassostrea gigas, the Japanese oyster (Thunberg, 1793) has long...

Recent advances in EST sequencing in Crassostrea gigas: towards the sequencing of the Pacific oyster genome (2007)

BOUDRY, Pierre, HUVET, Arnaud, LAPEGUE, Sylvie, SAUVAGE, Christopher, TANGUY, A., MORAGA, D., ...

Rationale for EST and genome sequencing of the Pacific oyster: • its membership of the Lophotrochozoa, an little studied branch of the Eukaryotes, • its worldwide aquacultural importance (4.2...

A first genetic linkage map of the blue mussel Mytilus edulis (2007)

LALLIAS, Delphine, HECQUET, Céline, BOUDRY, Pierre, LAPEGUE, Sylvie, BEAUMONT, Andy

The blue mussel, Mytilus edulis, is widely distributed in the northern hemisphere, from the White Sea to the Atlantic coast of southern France, and is an economically important species (1 million...

A first genetic linkage map of the European flat oyster, Ostrea edulis : towards the identification of Bonamia resistance QTLs (2007)

LALLIAS, Delphine, LAPEGUE, Sylvie, HALEY, Chris, HEURTEBISE, Serge, BOUDRY, Pierre, BEAUMONT, Andy

The flat oyster Ostrea edulis is an endemic European oyster species, found on both Atlantic and Mediterranean coasts. Its aquacultural production has dramatically decreased due to two successive...

Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). I. Estimation of genetic parameters for survival and growth (2007)

DEGREMONT, Lionel, ERNANDE, Bruno, BEDIER, Edouard, BOUDRY, Pierre

The multidisciplinary project "MOREST" aims to improve our understanding of causes of summer mortality in Crassostrea gigas juveniles in France and to reduce its impact on oyster production. As pail...

Detection of ostreid herpesvirus 1 DNA by PCR in bivalve molluscs: A critical review (2007)

BATISTA, Frederico, ARZUL, Isabelle, PEPIN, Jean-Francois, RUANO, Francisco, FRIEDMAN, Carolyn S., BOUDRY, Pierre, ...

Herpes-like viral infections have been reported in different bivalve mollusc species throughout the world. High mortalities among hatchery-reared larvae and juveniles of different bivalve species...

Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). I. Estimation of genetic parameters for survival and growth (2007)

Degremont, Lionel, Ernande, Bruno, Bédier, Edouard, Boudry, Pierre

The multidisciplinary project "MOREST" aims to improve our understanding of causes of summer mortality in Crassostrea gigas juveniles in France and to reduce its impact on oyster production. As pail...

Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). I. Estimation of genetic parameters for survival and growth (2007)

Degremont, Lionel, Ernande, Bruno, Bédier, Edouard, Boudry, Pierre

The multidisciplinary project "MOREST" aims to improve our understanding of causes of summer mortality in Crassostrea gigas juveniles in France and to reduce its impact on oyster production. As pail...

Genetic variation and trade-offs for reproduction ans survival in the Pacific oyster Crassostrea gigas (2006)

BOUDRY, Pierre, DEGREMONT, Lionel, BEDIER, Edouard, POUVREAU, Stephane, NORMAND, Julien, ERNANDE, Bruno

To date, the most significant method to genetically reduce reproductive effort in the Pacific oyster (Crassostrea gigas) has been through the production of triploids, especially since the development...

Nutrition and reproduction are key parameters in the interaction process leading to Crassostrea gigas oyster summer mortality in France (2006)

SAMAIN, Jean-Francois, DEGREMONT, Lionel, SOLETCHNIK, Patrick, ROPERT, Michel, BEDIER, Edouard, MAZURIE, Joseph, ...

Complex interactions between oyster, environment and pathogens were observed during the MOREST (2001-2005) project on summer mortality events of Crassostrea gigas oysters in France. The talk will...

Research and development for the genetic improvement of the Pacific oyster in France : present and prospects (2006)

BOUDRY, Pierre, HAFFRAY, Pierrick

The most significant genetic improvement for the production of Pacific oyster (Crassostrea gigas) in France to date has been through the breeding of triploids, especially since the development of...

Response to divergent selection for resistance to summer mortality in Pacific oyster spat : genetic parameters and correlated responses with subsequent survival and growth (2006)

BOUDRY, Pierre, BEDIER, Edouard, ERNANDE, Bruno, DEGREMONT, Lionel

The multidisciplinary program "MOREST" aims to improve our understanding of causes of summer mortality in Crassostrea gigas juveniles in France and to reduce its impact on oyster production. As part...

Genetic consequences of production of Pacific oyster larvae in hatchery: drift and selective pressures related to rearing practices (2006)

TARIS, Nicolas, SAUVAGE, Christopher, BATISTA, Frederico, BARON, Sophie, ERNANDE, Bruno, HAFFRAY, Pierrick, ...

Previous studies have shown heritable variation in larval developmental traits in the Pacific oyster Crassostrea gigas. In order to study the genetic consequences of production of oyster larvae in...

Development of management tools for the male diploid and tetraploid cupped oysters Crassostrea gigas' gametes for conservation and distribution purposes (2006)

BRIZARD, Raphael, BOUDRY, Pierre, HAFFRAY, Patrick, LABBE, C., SUQUET, Marc, ROBERT, Rene, ...

In order to improve oyster culture, many research programs try and propose new methods aiming at improving genetically the product performances and quality (selection, polyploidisation). As for...

Genetic consequences of production of Pacific oyster larvae in hatchery : drift and selective pressures related to rearing practices (2006)

TARIS, Nicolas, SAUVAGE, Christopher, BATISTA, Frederico, BARON, Sophie, ERNANDE, Bruno, HAFFRAY, Patrick, ...

Previous studies have shown heritable variation in larval developmental traits in the Pacific oyster Crassostrea gigas. In order to study the genetic consequences of production of oyster larvae in...

Taxonomie de l'huître naine Ostreola stentina (2006)

LAPEGUE, Sylvie, BEN SALAH, Inès, BATISTA, Frederico, HEURTEBISE, Serge, NEIFAR, Lassad, BOUDRY, Pierre

Despite the economic importance of numerous oyster species throughout the world, our knowledge of their systematics and phylogeography remains fragmentary. In Europe, the indigenous species, Ostrea...

Phylogeographic study of the dwarf oyster, Ostreola stentina, from Morocco, Portugal and Tunisia: evidence of a geographic disjunction with the closely related taxa, Ostrea aupouria and Ostreola equestris (2006)

LAPEGUE, Sylvie, BEN SALAH, Ines, BATISTA, Frederico, HEURTEBISE, Serge, NEIFAR, L, BOUDRY, Pierre

Despite the economic importance of oysters due to the high aquaculture production of several species, the current knowledge of oyster phylogeny and systematics is still fragmentary. In Europe, Ostrea...

Molecular identification and expression of the phosphoglucomutase (PGM) gene from the Pacific oyster Crassostrea gigas (2006)

TANGUY, Arnaud, BOUTET, Isabelle, BOUDRY, Pierre, DEGREMONT, Lionel, LAROCHE, Jean, MORAGA, Dario

Phosphoglucomutase is a key enzyme in glycolysis and has been widely studied in vertebrates and some invertebrates but no molecular information is available in marine invertebrates despite the...

An amylase gene polymorphism is associated with growth differences in the Pacific cupped oyster Crassostrea gigas (2006)

PRUDENCE, Marie, MOAL, Jeanne, BOUDRY, Pierre, DANIEL, Jean-Yves, QUERE, Claudie, JEFFROY, Fanny, ...

This study investigated the non-neutrality of genetic polymorphism in two alpha-amylase genes (AMYA and AMYB) in the oyster Crassostrea gigas. Bi-parental oyster families, bred to be polymorphic for...

A prelilinary genetic linkage map for the European flat oyster Ostrea edulis L. (2006)

LALLIAS, Delphine, LAPEGUE, Sylvie, HALEY, Chris, BOUDRY, Pierre, HEURTEBISE, Serge, BEAUMONT, Andy

The flat oyster Ostrea edulis is the species endemic to European coasts, both Atlantic and Mediterranean. It has been exploited since Roman times, but its aquaculture production decreased from around...

Development of SNPs and their use for the identification of summer mortality resistance QTLs in the Pacific oyster (Crassotrea gigas) (2006)

SAUVAGE, Christopher, LAPEGUE, Sylvie, BIERNE, Nicolas, BOUDRY, Pierre

Summer mortalities of the Pacific cupped oyster Crassostrea gigas have been described in the literature for decades. One solution to overcome this problem would be to select animals more tolerant to...

Effects of genetic drift and selection at larval stage resulting from hatchery practices in the Pacific oyster (Crassostrea gigas) (2006)

TARIS, Nicolas, SAUVAGE, Christopher, ERNANDE, Bruno, BATISTA, Frederico, BOUDRY, Pierre

Hatchery techniques are now well handled in an increasing number of aquaculture species. However, unintentional effects of domestication often remain poorly documented. In this context, we studied...

Hybridization and morphological differences between the two closely related oyster taxa Crassostrea angulata and C. gigas (2006)

BATISTA, Frederico, FONSECA, Vera, BEN-HAMADOU, Radhouan, TARIS, Nicolas, HENRIQUES, Maria, BOUDRY, Pierre

Unlike in some crops, no large heterotic effects have been observed in most farmed animals. Interestingly, significant hybrid vigour for some traits has been reported in the Pacific oyster,...

A preliminary genetic linkage map for the European flat oyster Ostrea edulis L. (2006)

LALLIAS, Delphine, LAPEGUE, Sylvie, HARLEY, CRHIS, BOUDRY, Pierre, HEURTEBISE, Serge, BEAUMONT, Andy

The flat oyster Ostrea edulis is the species endemic to European coasts, both Atlantic and Mediterranean. It has been exploited since Roman times, but its aquaculture production decreased from around...

European flat oyster - Ostrea edulis (2006)

LAPEGUE, Sylvie, BEAUMONT, A., BOUDRY, Pierre, GOULLETQUER, Philippe

The European flat oyster, Ostrea edulis, a native of Europe, occurs naturally from Norway to Morocco in the North-Eastern Atlantic and in the whole Mediterranean Basin; It has been a harvested...

Pacific cupped oyster - Crassostrea gigas (2006)

LAPEGUE, Sylvie, BOUDRY, Pierre, GOULLETQUER, Philippe

Originating from the north eastern Asia, Crassostrea gigas is endemic to Japan, but has been introduced and translocated, mainly for aquaculture purpose, into several countries, almost worldwide (1)....

A preliminary genetic linkage map for the European flat oyster Ostrea eduli (2006)

LALLIAS, Delphine, LAPEGUE, Sylvie, HALLEY, Chris, BOUDRY, Pierre, BEAUMONT, Andy

The European flat oyster, Ostrea edulis, occurs naturally from Norway to Morocco in the North-Eastern Atlantic and throughout the Mediterranean. The oyster has been a harvested species for at least...

Oyster population genetics : understanding natural populations and tracing introductions (2006)

LAPEGUE, Sylvie, BOUDRY, Pierre

Oysters are among the most familiar of all marine invertebrate taxa. However our knowledge of oyster phylogeny and systematics is fragmentary. This is principally due to the plastic growth patterns...

Possibilities to prevent Crassostrea gigas oyster summer mortality in France (2006)

SAMAIN, Jean-Francois, ROPERT, Michel, BEDIER, Edouard, SOLETCHNIK, Patrick, MAZURIE, Joseph, LE COZ, Florence, ...

Summer mortality has been reported in the Pacific oyster, Crassostrea gigas, for many years in Japan, US and Europe. It affects both adults and juveniles and the causes of this phenomenon are...

Fitness landscapes support the dominance theory of post-zygotic isolation in the mussels Mytilus edulis and M. galloprovincialis (2006)

BIERNE, Nicolas, BONHOMME, Francois, BOUDRY, Pierre, SZULKIN, M, DAVID, Pierre

We studied the genetic basis of post-zygotic isolation in the marine mussels Mytilus edulis and Mytilus galloprovincialis. Evidence was obtained for a high number of recessive Dobzhansky-Muller...

Phenotypic and genetic consequences of size selection at the larval stage in the Pacific oyster (Crassostrea gigas) (2006)

TARIS, Nicolas, ERNANDE, Bruno, MCCOMBIE, Helen, BOUDRY, Pierre

The life histories of oysters in the genus Crassostrea, like those of most marine bivalves, are typified by high fecundity and low survival in nature. Rearing conditions in hatcheries however ensure...

Variance of reproductive success in the European flat oyster Ostrea edulis assessed by microsatellite-based parentage analyses in a natural population and in hatchery (2006)

LALLIAS, Delphine, TARIS, Nicolas, BOUDRY, Pierre, BONHOMME, Francois, LAPEGUE, Sylvie

he European flat oyster (Ostrea edulis L.) is a marine bivalve whose natural geographical distribution ranges along the European Atlantic coast from Norway to Morocco, in addition to the...

Response to unintentional selection for faster development associated with inbreeding depression in Crassostrea gigas larvae, resulting from a broodstock selective breeding plan (2006)

TARIS, Nicolas, BATISTA, Frederico, MARISSAL, Eric, BOUDRY, Pierre

Direct and indirect consequences of selective breeding in marine bivalves still remain largely unexplored. For species with two-phase life cycle, like the Pacific oyster (Crassostrea gigas), most...

Genetic consequences of production of Pacific oyster larval in hatchery: drift and selective pressures related to rearing practices (2006)

BOUDRY, Pierre

Genetic consequences of production of Pacific oyster larval in hatchery: drift and selective pressures related to rearing practices. In order to study the genetic consequences of production of oyster...

Establishment of a genetic map in the European flat oyster Ostrea edulis L. (2006)

LALLIAS, Delphine, BOUDRY, Pierre, HEURTEBISE, Serge, LAPEGUE, Sylvie, BEAUMONT, Andy

The flat oyster Ostrea edulis is the species endemic from European coasts, Atlantic and Mediterranean. It has been exploited since Roman times in Europe. But its production decreased from around...

"Bivalvomix" : evolutionary genomics of marine bivalves (2006)

BIERNE, Nicolas, BOUDRY, Pierre, LAPEGUE, Sylvie, BONHOMME, Francois, FAURE, M, SAUVAGE, Christopher, ...

Les généticiens des populations ont longtemps dû se contenter de l'analyse de marqueurs neutres pour inférer indirectement les processus sélectifs. Les progrès récents des outils de...

Is the Portuguese oyster Crassostrea angulata in Southern Europe endangered by the expansion of the Pacific oyster C. gigas? (2005)

BATISTA, Frederico, BOUDRY, Pierre, LAPEGUE, Sylvie, HEURTEBISE, Serge, MONTEIRO, C. C.

The Portuguese oyster, Crassostrea angulata, was introduced from Portugal to the French Atlantic Coast in the 1860s. C. angulata quickly settled and expanded and leaded to the development of a new...

Amylase polymorphism affects growth in the cupped oyster Crassostrea gigas (2005)

HUVET, Arnaud, SAMAIN, Jean-Francois, BOUDRY, Pierre, BEDIER, Edouard, ROPERT, Michel, VAN WORMHOUDT, A.

The better understanding of physiological and environmental factors that determine optimal food conversion efficiencies is of major interest for the cupped oyster Crassostrea gigas for which the...

Study of the reproductive potential of triploid oysters (2005)

NORMAND, Julien, BOUDRY, Pierre, CORNETTE, Florence, LEDU, Christophe

Reproduction was studied in triploid Crassostrea gigas, by crossing gametes from diploid and triploid parents.Triploids are able to produce viable gametes and their resulting progeny consisted in...

Genetic effect of domestication seletive pressures on Pacific oyster at larval stage (2005)

TARIS, Nicolas, SAUVAGE, Christopher, ERNANDE, Bruno, BOUDRY, Pierre

Among bivalve species, the Pacific oyster, Crassostrea gigas, is the most economically important bivalve production over the world. Today, C. gigas is subject to an important production effort that...

Relative importance of family, site, and field placement timing on survival, growth, and yield of hatchery-produced Pacific oyster spat (Crassostrea gigas) (2005)

DEGREMONT, Lionel, BEDIER, Edouard, SOLETCHNIK, Patrick, ROPERT, Michel, HUVET, Arnaud, MOAL, Jeanne, ...

Summer mortality has been reported in the Pacific oyster, Crassostrea gigas, for many years in different parts of the world. The causes of this phenomenon are complex. The multidisciplinary program...

A complementary method for production of tetraploid Crassostrea gigas using crosses between diploids and tetraploids with cytochalasin B treatments (2005)

MCCOMBIE, Helen, LEDU, Christophe, PHELIPOT, Pascal, LAPEGUE, Sylvie, BOUDRY, Pierre, GERARD, Andre

We present a new method to produce tetraploid Crassostrea gigas by cytochalasin B inhibition of polar body 2 expulsion in diploid females crossed with tetraploid males. This offers a means of direct...

The taxonomic status and origin of the Portuguese oyster Crassostea angulata (Lamark, 1819) (2005)

BATISTA, Frederico, LEITAO, Alexandra, HUVET, Arnaud, LAPEGUE, Sylvie, HEURTEBISE, Serge, BOUDRY, Pierre

The taxonomic status of the Portuguese oyster Crassostrea angulata and the Pacific oyster Crassostrea gigas has often been a matter of controversy. Based on larval shell morphology, experimental...

Effects of age and environment on the summer mortality in cupped oyster Crassostrea gigas during the first two years (2005)

DEGREMONT, Lionel, BOUDRY, Pierre, SOLETCHNIK, Patrick, BEDIER, Edouard, ROPERT, Michel, SAMAIN, Jean-Francois

Three successive generations were produced between 2001 and 2003 to assess to what extent genetic variability exists for survival in juvenile oysters Crassostrea gigas. For each generation, two...

Impact of intensive larval rearing practices in oyster hatcheries : selective processes and loss of genetic variability (2005)

TARIS, Nicolas, SAUVAGE, Christopher, BOUDRY, Pierre

Early-life history of oysters, like in most marine bivalves, is characterized by high fecundity and low survival rate. In hatcheries, which are ecoming more and more important for the production of...

The identification of genes from the oyster Crassostrea gigas that are differentially expressed between progeny exhibiting opposed susceptibility to summer mortality (2005)

HUVET, Arnaud, DEGREMONT, Lionel, LABREUCHE, Yannick, DANIEL, Jean-Yves, DUBRUNFAUT, Thomas, BOUDRY, Pierre, ...

Summer mortality associated with juveniles of the oyster Crassostrea gigas is the result of a complex interaction between the host, pathogens and environment. Divergent selection based on summer...

Genetic improvement of hatchery propagated bivalve stocks : prospects and constraints (2005)

BOUDRY, Pierre

To date, the most significant genetic improvement for the production of Pacific oyster (Crassostrea gigas) has been obtained through the production of triploids, especially since the development of...

Chromosome loss in bi-parental progenies of tetraploid Pacific oyster Crassostrea gigas (2005)

MCCOMBIE, Helen, LAPEGUE, Sylvie, CORNETTE, Florence, LEDU, Christophe, BOUDRY, Pierre

Alterations of chromosome number have been observed in the somatic tissue of Crassostrea gigas diploids and artificial polyploids. Tetraploid oysters with abnormal chromosome numbers in some or all...

Microsatellite-based parentage analysis of factorial crosses in Pacific oyster (Crassostrea gigas) larvae and spat (2005)

TARIS, Nicolas, SAUVAGE, Christopher, ERNANDE, Bruno, BOUDRY, Pierre

Several studies have suggested that significant genetic variability might exist for some early developmental traits in the Pacific oyster, C. gigas. However, most studies have examined only limited...

Effect of age and environment on the summer mortality in cupped oyster Crassostrea gigas during the first two years (2005)

DEGREMONT, Lionel, BOUDRY, Pierre, SOLETCHNIK, Patrick, BEDIER, Edouard, ROPERT, Michel, SAMAIN, Jean-Francois

Three successive generations were produced between 2001 and 2003 to assess to what extent genetic variability exists for this trait in juvenile oysters Crassostrea gigas. For each generation, two...

A combined microsatellite multiplexing and boiling DNA extraction method for high-throughput parentage analyses in the Pacific oyster (Crassostrea gigas) (2005)

TARIS, Nicolas, BARON, S, SHARBEL, Tim, SAUVAGE, Christopher, BOUDRY, Pierre

The analysis of parentage using microsatellite markers is of increasing importance, notably in aquaculture genetic research where communal rearing of mixed families can be used to reduce unwanted...

Endonuclease banding reveals that atrazine-induced aneuploidy resembles spontaneous chromosome loss in Crassostrea gigas (2005)

BOUILLY, Karine, LEITAO, Alexandra, CHAVES, Raquel, GUEDES PINTO, Henrique, BOUDRY, Pierre, LAPEGUE, Sylvie

Aneuploidy has previously been observed in the Pacific oyster, Crassostrea gigas, and shown to be negatively correlated with growth. Moreover, a significant impact of atrazine exposure has been...

Management of genetic ressources of the pearl oyster Pinctada margaritifera in French Polynesia : genetic study of populations and optimisation of spat collection for pearl production (2005)

ARNAUD, Sophie, GOYARD, Emmanuel, PROU, Jean, VONAU, Vincent, BONHOMME, Francois, BOUDRY, Pierre

Exploitation of the pearl oyster Pinetada margaritifera, which has developed in French Polynesia over the last twenty years, is based mainly on the collection of natural spat. Recruitment is highly...

Evidence for the presence of the Portuguese oyster, Crassostrea angulata, in northern China (2004)

LAPEGUE, Sylvie, BATISTA, Frederico, HEURTEBISE, Serge, YU, Ziniu, BOUDRY, Pierre

The Pacific oyster, Crassostrea gigas (Thunberg), and the Portuguese oyster, C. angulata (Lamarck), are two closely related taxa. Although these two taxa were both introduced from Asia into Europe....

Reduced female gene flow in the European flat oyster Ostrea edulis (2004)

DIAZ ALMELA, F, BOUDRY, Pierre, LAUNEY, Sophie, BONHOMME, Francois, LAPEGUE, Sylvie

The geographical structure of 15 natural populations of the flat oyster (Ostrea edulis L.) was assessed by single-strand conformation polymorphism (SSCP) of a 313-base-pair (bp) fragment of the...

Overwiew on selective breeding and genetic improvement in bivalve shellfish (2004)

BOUDRY, Pierre

Dr. Boudry focussed his talk on oysters, which are the most important bivalve species produced world wide (more than 4 million tons). One of the main characteristic of bivalve aquaculture is that...

Overwiew on molecular tools in bivalve shellfish aquaculture (2004)

BOUDRY, Pierre, SAAVEDRA, Carlos

Dr. Boudry presented an overview of the current development of molecular tools in shellfish bivalves, focussing on the recent development in oysters, species to which the most efforts are dedicated....

Impact of intensive larval rearing practices in oyster hatcheries : selective processes and loss of genetic variability (2004)

TARIS, Nicolas, SAUVAGE, Christopher, BOUDRY, Pierre

Oysters, like many marine bivalves, are characterized by very high fecundity and low survival rate at early stages of life. Rearing conditions in hatcheries (i.e. density, feeding, temperature...)...

The molecular phylogeny of oysters based on a satellite DNA related to transposons (2004)

LOPEZ FLORES, Inmaculada, GARRIDO RAMOS, M, BOUDRY, Pierre, RUIZ REJON, C, RUIZ REJON, M

We have analysed a centromeric satellite DNA family that is conserved in several commercial and non-commercial oyster species (Ostrea edulis, O. stentina, Crassostrea angulata, C gigas, C gasar, C...

Genetic impact of intensive oyster production in hatcheries: drifting and selection process linked to the larviculture practices (2004)

TARIS, Nicolas, SAUVAGE, Christopher, BOUDRY, Pierre

Oysters, like many other marine bivalves, are characterized by high fertility and low survival rates during the precocious stages. Hatchery reproduction, realised in very different conditions than in...

Impact of atrazine on somatic aneuploidy in cupped oysters, Crassostrea gigas (2004)

BOUILLY, Karine, LEITAO, Alexandra, MCCOMBIE, Helen, CHAVES, R., GUEDES PINTO, H, BOUDRY, Pierre, ...

In the Pacific oyster, Crassostrea gigas hypodiploid aneuploid cells with 2n=19, 18 or 17 chromosomes have regularly been reported. There is a negative correlation between somatic aneuploidy and...

Genetic variability and selective breeding for traits of aquacultural interest in the Pacific oyster (Crassostrea gigas) (2004)

BOUDRY, Pierre, DEGREMONT, Lionel, TARIS, Nicolas, MCCOMBIE, Helen, HAFFRAY, Pierrick, ERNANDE, Bruno

To date, the most significant genetic improvement for the production of Pacific oyster (Crassostrea gigas) has been obtained through the breeding of triploids, especially since the development of...

Genetic variability and selective breeding for traits of aquacultural interest in the Pacific oyster (Crassostrea gigas) (2004)

BOUDRY, Pierre, DEGREMONT, Lionel, TARIS, Nicolas, MCCOMBIE, Helen, HAFFRAY, Pierrick, ERNANDE, Bruno

To date, the most significant genetic improvement for the production of Pacific oyster (Crassostrea gigas) has been obtained through the breeding of triploids, especially since the development of...

Impact of the reproduction dynamics on genetic variation in the European flat oyster Ostrea edulis (2004)

LAPEGUE, Sylvie, TARIS, Nicolas, LALLIAS, Delphine, BONHOMME, Francois, BOUDRY, Pierre

The European flat oyster (Ostrea edulis L.) is a marine bivalve whose natural geographical distribution ranges along the European Atlantic coast from Norway to Morocco, in addition to the...

Selective breeding to improve resistance against summer mortality in the Pacific oyster Crassostrea gigas : results after 3 generations (2004)

BOUDRY, Pierre, DEGREMONT, Lionel, BEDIER, Edouard, SAMAIN, Jean-Francois

Summer mortality of adults and juveniles has been reported in the Pacific oyster, Crassostrea gigas, for many years and in several countries. The French multidisciplinary program "Morest" aims to...

Using a satellite DNA family for species identification of commercial oysters (2004)

LOPEZ-FLORES, I., GARRIDO-RAMOS, M. A., BOUDRY, Pierre, RUIZ-REJON, C., RUIZ-REJON, M.

The cultivation of oyster presents some problems related with the identification and differentiation of species as Ostrea edulis (European flat oyster) with respect to Ostrea stentina (Provence...

Genetic impact of the reproduction dynamics in the European flat oyster Ostrea edulis (2004)

LAPEGUE, Sylvie, TARIS, Nicolas, LALLIAS, Delphine, BONHOMME, Francois, BOUDRY, Pierre

The European flat oyster (Ostrea edulis L.) is a marine bivalve whose natural geographical distribution ranges along the European Atlantic coast from Norway to Morocco, in addition to the...

Genetic variability and selective breeding for traits of aquacultural interest in the Pacific oyster (Crassostrea gigas) (2004)

BOUDRY, Pierre, DEGREMONT, Lionel, TARIS, Nicolas, MCCOMBIE, Helen, HAFFRAY, Pierrick, ERNANDE, Bruno

The most significant genetic improvement for production of Pacific oyster (Crassastrea gigas) has been obtained through the breeding of triploids, especially since the development of tetraploids....

Natural hybridization between genetically differentiated populations of Crassostrea gigas and C-angulata highlighted by sequence variation in flanking regions of a microsatellite locus (2004)

HUVET, Arnaud, FABIOUX, Caroline, MCCOMBIE, Helen, LAPEGUE, Sylvie, BOUDRY, Pierre

The marine environment is of special interest for studying hybridization between closely related taxa because of the high dispersal potential of planktonic larvae, such as those of most bivalve...

Genetic diversity among Crassostrea cupped oysters : which resources and improvements in Crassostrea gigas production? (2003)

BOUDRY, Pierre

Despite the economic importance of oyster farming, knowledge about genetic resources of these species is still limited. The objectives of my research were to provide further information about (1)...

Residual genetic variability in domesticated populations of the Pacific blue shrimp (Litopenaeus stylirostris) of New Caledonia, French Polynesia and Hawaii and some management recommendations (2003)

GOYARD, Emmanuel, ARNAUD, Sophie, VONAU, Vincent, BISHOFF, Vincent, MOUCHEL, Olivier, PHAM, Dominique, ...

The Latin American shrimp Litopenaeus stylirostris was introduced in three different Pacific islands (Tahiti, New Caledonia via Tahiti, and Hawaii) and hatchery-propagated for 7-25 generations to...

Chromosome loss in tetraploid families of the Pacific oyster Crassostrea gigas (2003)

MCCOMBIE, Helen, LAPEGUE, Sylvie, CORNETTE, Florence, LEDU, Christophe, BOUDRY, Pierre

Alterations of chromosome number have been observed in the somatic tissue of Crassostrea gigas diploids and artificial polyploids bred in this species. Tetraploid animals with lower chromosome counts...

Summer mortality in juvenile cupped oysters : response to selection in the field and in laboratory (2003)

DEGREMONT, Lionel, BEDIER, Edouard, SOLETCHNIK, Patrick, ROPERT, Michel, SAMAIN, Jean-Francois, BOUDRY, Pierre

The French project "Morest", coordinated by IFREMER, aims to a better understanding of the causes of summer mortalities in juvenile oysters by a multidisciplinary approach. Within this program, a...

Individual growth variation and its relationship with survival in juvenile Pacific oysters, Crassostrea gigas (Thunberg) (2003)

BOUDRY, Pierre, COLLET, B, MCCOMBIE, Helen, ERNANDE, Bruno, MORAND, B, HEURTEBISE, Serge, ...

In order to study individual growth variability and its relationship with survival in juvenile Crassostrea gigas, parental oysters were sampled at four sites located along the French Atlantic coast...

Population genetics of the European flat oyster (Ostrea edulis) : from larvae to populations (2003)

BOUDRY, Pierre, LAUNEY, Sophie, DIAZ-ALMELA, A., NACIRI-GRAVEN, Yamama, LEDU, Christophe, MIRA, S., ...

PCR-based DNA markers enable the study of diversity and differentiation of marine organisms at different stages of their life cycle. Our study of European fiat oyster (Ostrea edulis) populations...

Contribution of a genetic program to aquaculture : the example of the shellfishery (2003)

LAPEGUE, Sylvie, BEDIER, Edouard, GOYARD, Emmanuel, DEGREMONT, Lionel, BAUD, Jean-Pierre, GERARD, Andre, ...

Two oyster species are currently present along the French coasts : the indigenous European flat oyster (Ostrea edulis), and the Pacific cupped oyster (Crassostrea gigas), that has been introduced...

Genetic and reproction strategy in Crassostrea gigas mortality (2003)

MOAL, Jeanne, BEDIER, Edouard, FLEURY, Pierre-Gildas, LANGLADE, Aime, LE COGUIC, Yvette, DEGREMONT, Lionel, ...

Bi-parental families were produced in hatchery and tested in the field in 2001. Two sets of 5 families were constituted, selected on their high (R) and low (S) survival. These two sets were reared in...

Genetic basis of summer mortality in juvenile cupped oysters (2003)

DEGREMONT, Lionel, BOUDRY, Pierre, BEDIER, Edouard, ROPERT, Michel, SOLETCHNIK, Patrick, HUVET, Arnaud, ...

The French project "Morest", coordinated by IFREMER, aims to understand the causes of the summer mortalities in Crassostrea gigas. In 2001, three sets of families were bred following a nested...

Summer mortality and growth of the cupped oyster (Crassostrea gigas) spat: a study of selected families (2003)

DEGREMONT, Lionel, BOUDRY, Pierre, BEDIER, Edouard, ROPERT, Michel, SOLETCHNIK, Patrick, HUVET, Arnaud, ...

In the scope of the Morest program, 3 series of bi-parental families of cupped oyster consisting of full and half-sib have been created in 2001, and then studied on a regular basis on several sites...

Review and practical use of genome mapping in aquacultured organisms. Position paper by the Working Group on the Application of Genetics in Fisheries and Mariculture (WGAGFM) (2003)

BOUDRY, Pierre, LAPEGUE, Sylvie, GUYOMARD, R.

The Working Group on the Application of Genetics in Fisheries and Mariculture (WGAGFM) met in La Rochelle, France from 10-12 March, 2003. Seven persons representing six countries were present. Three...

Morphological and mitochondrial DNA characteristics of two cultured species of cupped-oysters (Bivalvia : Ostreidae) in Hong Kong : towards a significant taxonomic name change (2003)

LAM, Katherine, MORTON, Brian, BOUDRY, Pierre, HEURTEBISE, Serge

Cultured cupped-oysters species in Hong Kong have rarely been differentiated properly due to similarities in shell characters. This study attempted to characterize putative Crassostrea gigas and...

Cytogenetic study of Ostrea conchaphila (Mollusca : Bivalvia) and comparative karyological analysis within Ostreinae (2002)

LEITAO, Alexandra, CHAVES, Raquel, SANTOS, SARA, BOUDRY, Pierre, GUEDES PINTO, Henrique, THIRIOT QUIEVREUX, Catherine

Chromosome preparations of the Olympia oyster Ostrea conchaphila Carpenter were studied using conventional Giemsa, silver staining, and C-banding techniques. The karyotype consists of six metacentric...

Population genetics of the European flat oyster (Ostrea edulis) : from larvae to populations (2002)

BOUDRY, Pierre, LAUNEY, Sophie, DIAZ-ALMELA, E., NACIRI GRAVEN, Yamama, LEDU, Christophe, MIRA, Sara, ...

Nowadays, PCR-based DNA markers allow the study of diversity and differentiation of marine organisms at different stages of their life cycle. Our study of European flat oyster (Ostrea edulis)...

A comparative field study of growth, survival and reproduction of Crassostrea gigas, C-angulata and their hybrids (2002)

SOLETCHNIK, Patrick, HUVET, Arnaud, LE MOINE, Olivier, RAZET, Daniel, GEAIRON, Philippe, FAURY, Nicole, ...

This paper reports a comparative study of two cupped oysters, Crassostrea gigas and C angulata, and their hybrids reared in the Marennes-Oleron Sound (France) under usual farming conditions. The...

Genetic and dynamic diversity in the recruitment of the flat oyster Ostrea edulis L. (2002)

LAPEGUE, Sylvie, BOUDRY, Pierre, MIRA, Sara, TARIS, Nicolas, BONHOMME, Francois

In order to understand better some fundamental aspects of the bivalve biology, one has to pay attention to the variance of their breeding success, the time structure of the populations and their...

Trans-Atlantic distribution of a mangrove oyster species revealed by 16S mtDNA and karyological analyses (2002)

LAPEGUE, Sylvie, BOUTET, Isabelle, LEITAO, Alexandra, HEURTEBISE, Serge, GARCIA, P, THIRIOT QUIEVREUX, C, ...

Three species of man.-rove oysters, Crassostrea rhizophorae, C. brasiliana, and C. gasar, have been described along the Atlantic shores of South America and Africa. Because the distribution of these...

Genetical basis of the plasticity of resource allocation in the Pacific oyster (Crassostrea gigas) (2002)

ERNANDE, Bruno, HAURE, Joel, DEGREMONT, Lionel, BEDIER, Edouard, BOUDRY, Pierre

Phenotypic and genetic correlations between fitness-related life-history traits - such as survival, growth and reproductive allocation - have to be considered to better understand selective...

Is fertility of hybrids enough to conclude that the two oysters Crassostrea gigas and Crassostrea angulata are the same species? (2002)

HUVET, Arnaud, GERARD, Andre, LEDU, Christophe, PHELIPOT, Pascal, HEURTEBISE, Serge, BOUDRY, Pierre

The distinction of the two cupped oysters Crassostrea gigas (Thunberg, 1793) and Crassostrea angulata (Lamark, 1819) into two species was chiefly due to their differing geographical distributions, C....

Assortative fertilization and selection at larval stage in the mussels Mytilus edulis and M-galloprovincialis (2002)

BIERNE, Nicolas, DAVID, Pierre, BOUDRY, Pierre, BONHOMME, F

Assortative mating (prezygotic isolation) and reduced hybrid fitness (postzygotic isolation) are typically invoked to explain the stability of hybrid zones. In the tension zone model. these factors...

ASSORTATIVE FERTILIZATION AND SELECTION AT LARVAL STAGE IN THE MUSSELS MYTILUS EDULIS AND M. GALLOPROVINCIALIS (2002)

Nicolas Bierne, Patrice David, Pierre Boudry, François Bonhomme

Assortative mating (prezygotic isolation) and reduced hybrid fitness (postzygotic isolation) are typically invoked to explain the stability of hybrid zones. In the tension zone model, these factors...

Past and present geographical distribution of populations of Portuguese (Crassostrea angulata) and Pacific (C. gigas) oysters along the European and north African Atlantic coats (2002)

FABIOUX, Caroline, HUVET, Arnaud, LAPEGUE, Sylvie, HEURTEBISE, Serge, BOUDRY, Pierre

Today, it is commonly accepted that C. angulata and C. gigas are a single species according to morphological, genetic and experimental hybridization data. Following the viral disease that affected C....

Microsatellite analysis of 6-hour-old embryos reveals no preferential intraspecific fertilization between cupped oysters Crassostrea gigas and Crassostrea angulata (2001)

HUVET, Arnaud, BALABAUD, K, BIERNE, Nicolas, BOUDRY, Pierre

Experimental examination of reproductive isolation is the first step in understanding li,hybridization processes. Here, we studied preferential fertilization between 2 cupped oyster taxa, Crassostrea...

Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas (2001)

LEITAO, Alexandra, BOUDRY, Pierre, THIRIOT QUIEVREUX, Catherine

The G-banding technique was performed on aneuploid karyotypes from gill tissue of the Pacific oyster, Crassostrea gigas, to assess whether chromosome losses could be explained by differential...

Study of the growth and the activity ecophysiologic of hollow oysters Crassostrea gigas, Crassostrea angulata and their hybrids in controlled system (2001)

HAURE, Joel, HUVET, Arnaud, PALVADEAU, Hubert, NOURRY, Max, MARTIN, Jean-Louis, BOUDRY, Pierre, ...

A comparative study of the growth of the oysters Crassostrea gigas, Crassostrea angulata and their hybrids was carried out in 1999 in system controlled with contribution of the micro alga Skeletonema...

A study of the polymorphism of the amylase genes in Crassostrea gigas: relationship with the physiological parameters of the assimilation and growth (2001)

DEGREMONT, Lionel, MOAL, Jeanne, DANIEL, Jean-Yves, BOUDRY, Pierre, VAN VORMHOUDT, A., SELLOS, D., ...

In the scope of the European program GENEPHYS, which aims to establish the relationship between the genetic base and the physiological characters in relation to the growth in Crassostrea gigas, it...

Genetic differentiation of European flat oyster, Ostrea edulis, populations through the use of mitochondrial genomes and nuclear markers (2001)

LAPEGUE, Sylvie, DIAZ-ALMELA, E., LAUNEY, Sophie, LEDU, Christophe, BOUDRY, Pierre, NACIRI-GRAVEN, Yamama, ...

Two oyster species are cultivated on the French coasts: the Pacific cupped oyster (Crassostrea gigas), which has been introduced from Japan in the 1970's after the disappearance of the Portuguese...

Phylogeography in South-Atlantic mangrove oysters: C. gasar and C. rhisophorae (2001)

HEURTEBISE, Serge, BOUTET, Isabelle, VERDEN, B., LAPEGUE, Sylvie, LEITAO, Alexandra, THIRIOT-QUIEVREUX, Catherine, ...

Mangrove oysters include various species that are also present on different coasts. In the southern part of the Atlantic Ocean, Crassostrea rhizophorae has been observed along the southern coast of...

Genetical basis and plasticity involved in growth and survival in cupped oyster, Crassostrea gigas (2001)

ERNANDE, Bruno, BOUDRY, Pierre, HEURTEBISE, Serge, HAURE, Joel, MARTIN, Jean-Louis

Growth and survival are the two most interesting characters for oyster farming as they determine the biomass produced in the farms (growth x survival). Thus, a selection program aiming at improving...

The aneuplody phenomenon and its relation to the cupped oyster Crassostrea gigas's growth (2001)

LEITAO, Alexandra, BOUDRY, Pierre, MCCOMBIE, Helen, LAPEGUE, Sylvie, GERARD, Andre, THIRIOT-QUIEVREUX, Catherine

Cytogenetic abnormalities have often been observed on bivalves on meiosis or mitosis. This is a review of various observations of somatic aneuploidy conducted on different populations of Crassastrea...

A comparative study of the growth and ecophysiologic activity in cupped oysters Crassostrea gigas, Crassostrea angulata and their hybrids (2001)

HAURE, Joel, HUVET, Arnaud, PALVADEAU, Hubert, NOURRY, Max, PENISSON, Christian, BOUDRY, Pierre, ...

A comparative study of the growth performances in cupped oysters Crassostrea gigas, Crassostrea angulata and their hybrids was conducted from March to October 1999 in a controlled farm with...

Natural hybridization between two cupped oysters subspecies Crassostrea gigas and Crassostrea angulata in the South of Europe (2001)

HUVET, Arnaud, FABIOUX, Caroline, LAPEGUE, Sylvie, BOUDRY, Pierre

Crassostrea angulata and Crassostrea gigas, two cupped oysters of Asian origin (O'Foighil et al, 1998), have been introduced successively in Europe during the XVlth and the XXth century (Grizel et...

Experimental evidence for a genetic basis to differences in aneuploidy in the Pacific oyster (Crassostrea gigas) (2001)

LEITAO, Alexandra, BOUDRY, Pierre, MCCOMBIE, Helen, GERARD, Andre, THIRIOT-QUIEVREUX, Catherine

Aneuploidy has been previously reported in wild and cultivated Pacific oysters, Crassostrea gigas, and has been shown to be negatively correlated with growth. This is especially important since high...

Evidence for natural hybrtidisation between the two oyster sub-species Crassostrea gigas and Crassostrea angulata in Southern Europe (2001)

BOUDRY, Pierre, HUVET, Arnaud, FABIOUX, Caroline, LAPEGUE, Sylvie

Crassostrea angulata and Crassostrea gigas, two cupped oyster taxa of Asian origin (O'Foighil et al, 1998), were successively introduced into Europe during the XVIth and the XXth century respectively...

Mitochondrial and nuclear DNA phylogeography of Crassostrea angulata, the Portuguese oyster endangered in Europe (2000)

HUVET, Arnaud, LAPEGUE, Sylvie, MAGOULAS, A, BOUDRY, Pierre

The respective status of the Portuguese oyster, Crassostrea angulata, and the Pacific oyster, Crassostrea gigas, has long been a matter of controversy. Morphological and physiological similarities,...

Aneuploidy and its relationship with growth in different populations of the Pacific oyster (Crassostrea gigas, Thunberg) (2000)

BOUDRY, Pierre, LEITAO, Alexandra, MCCOMBIE, Helen, THIRIOT-QUIEVREUX, Catherine

Cytogenetic abnormalities arising both in mitosis and meiosis are known to be common in bivalves. Here we review result obtained from the observations of somatic aneuploidy in different populations...

Phylogeography of mangrove oysters from the Southern Atlantic ocean : Crassostrea gasar and Crassostre rhizophorae (2000)

LAPEGUE, Sylvie, BOUTET, Isabelle, LEITAO, Alexandra, THIRIOT-QUIEVREUX, Catherine, HEURTEBISE, Serge, GARCIA, P., ...

Mangrove oysters encompass several species and their taxomony is unclear. Among then, Crassostrea rhizophorae has been described along the Central and South American Atlantic coasts and Crassostrea...

Mitochondrial and microsatellite genetic differentiation of the flat oyster Ostrea edulis along the european coasts, and comparison with allozyme data (2000)

LAPEGUE, Sylvie, DIAZ-ALMELA, E., LAUNEY, Sophie, LEDU, Christophe, BOUDRY, Pierre, NACIRI GRAVEN, Yamama, ...

Natural populations of the European flat oyster, Ostrea edulis, have been harvested since Roman times. This species is distributed along the European Atlantic coasts, from Norway to Morocco, as well...

Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas (2000)

ERNANDE, Bruno, BOUDRY, Pierre, HEURTEBISE, Serge, HAURE, Joel, MARTIN, Jean-Louis

Introduction : Growth and survival are the life-history traits of the most interest for oyster production since they determine biomass output (growth x survival). This study aimed to investigate...

Microsatellite markers as a tool to study reproductive success in the Pacific oyster, Crassostrea gigas (Thunberg), under controlled hatchery conditions (2000)

BOUDRY, Pierre, COLLET, Bertrand, CORNETTE, Florence, HERVOUET, Veronique, BONHOMME, Francois

Oysters, like many marine species have a very high fecundity. Previous studies have shown that populations, from both hatcheries and the natural environment, have very low Ne/N ratios. These...

Variable microsatellites in the Pacific Oyster Crassostrea gigas and other cupped oyster species (2000)

HUVET, Arnaud, BOUDRY, Pierre, OHRESSER, M, DELSERT, Claude, BONHOMME, F

Source/description : Genomic DNA was extracted from a whole Pacific oyster (C. gigas) after grinding in liquid nitrogen. Purified DNA was then digested by a mix of 3 restriction enzymes (AluI, RsaI,...

Mitochondrial and nuclear DNA phylogeography of two cupped oysters Crassostrea gigas and Crassostrea angulata (1999)

BOUDRY, Pierre, HUVET, Arnaud

The taxonomic status of Crassostrea angulata and Crassostrea gigas has long been a matter of controversy. Morphological and physiological similarities, as well as homogeneity in allelic frequencies...

Experimental evidence of the variance in the flat oyster's (Crassostrea gigas - Thunberg) breeding success (1999)

BOUDRY, Pierre, COLLET, Bertrand, CORNETTE, Florence, HERVOUET, Veronique, KOTOULAS, G., BONHOMME, Francois

Oysters, like many other marine species, are characterized by very high fertilities. Natural or hatchery populations, often present very low Ne/N ratios (Hedgecock, 1994). It can be explained by very...

A "G" chromosome banding study of three cupped oyster species : Crassostrea gigas, Crassostrea angulata and Crassostrea virginica (Mollusca : Bivalvia) (1999)

LEITAO, Alexandra, THIRIOT-QUIEVREUX, Catherine, MALHEIRO, Isabel, BOUDRY, Pierre

The G-banding technique was performed on chromosomes from gill tissue of three cupped oyster species : Crassostrea gigas, Crassostrea angulata and Crassostrea virginica. Identification of the ten...

Comparative analysis of oxygen consumption rates between cupped oyster spat of Crassostrea gigas of French, Japanese, Spanish and Taiwanese origins (1999)

GOULLETQUER, Philippe, WOLOWICZ, Maciej, LATALA, Adam, GEAIRON, Philippe, HUVET, Arnaud, BOUDRY, Pierre

Respiration rates of various geographical strains of Crassostrea gigas were compared to assess the respiratory expenditure as a physiological indicator of catabolism (cost of maintenance). Parental...

Molecular markers as a tool to study genetic resources in oysters (1999)

BOUDRY, Pierre

Despite the world economic importance of oyster farming, genetic improvement has not yet had a great impact on these species. Oyster farming is traditionnally based on wild stocks, whose natural...

Relationship between pre- and post-metamorphic growth in the Pacific oyster Crassostrea gigas (Thunberg) (1999)

COLLET, Bertrand, BOUDRY, Pierre, THEBAULT, Anne, HEURTEBISE, Serge, MORAND, Berenice, GERARD, Andre

Twenty male and 20 female parental oysters, originating from four sites located along the French Atlantic coast, were crossed together. The 400 crosses were performed separately and then pooled to...

Use of microsatellite markers in the study of the parental contributions in the flat oyster Crassostrea gigas (1999)

BOUDRY, Pierre, COLLET, Bertrand, KOTOULAS, G., HERVOUET, Veronique, CORNETTE, Florence, BONHOMME, Francois, ...

Numerous aquacultural species show very high fertilities. As a consequence, it is possible to produce, in hatcheries, a large amount of sibs from a small amount of parents. The sibs' genetic...

Comparative karyological study of cupped oyster species (1999)

LEITAO, Alexandra, BOUDRY, Pierre, LABAT, Jean-Philippe, THIRIOT-QUIEVREUX, Catherine

Chromosomes of six cupped oyster species were studied using karyometric analysis alter conventional Giemsa staining, and silver staining, Karyotypes of Crassotrea angulata (nine metacentric and one...

Bonamia-like parasite found in the Suminoe oyster Crassostea rivularis reared in France (1998)

COCHENNEC, Nathalie, RENAULT, Tristan, BOUDRY, Pierre, CHOLLET, Bruno, GERARD, Andre

Considering the economic importance of the Pacific oyster Crassostrea gigas to the French shellfish industry, the appearance of major diseases in this species could cause dramatic decreases in...

The use of microsatellite markers for parentage analysis in the Pacific cupped oyster, Crassostrea gigas (Thunberg) (1998)

BOUDRY, Pierre, COLLET, Bertrand, KOTOULAS, Georgios, MAGOULAS, Antonio, HERVOUET, Veronique, BONHOMME, Francois, ...

Highly polymorphic genetic markers can be useful tools for the analysis of parental contributions. The present paper reports 3 experiments using microsatellite markers to analyse parental...

Genetic improvement and selection in shellfish : a review based on oyster research and production (1998)

BOUDRY, Pierre, BARRE, Marc, GERARD, Andre

Despite the economic importance of shellfish, genetic improvement has not yet had a great impact on these species. Shellfish farming is traditionally based on wild species whose natural populations...

A comparative approach of the variability and genetic structuration of two cultivated oyster species (Crassostrea gigas and Ostrea edulis) showing contrasted reproduction strategies and histories (1998)

BOUDRY, Pierre, LAUNEY, Sophie, HUVET, Arnaud

The two common oyster species cultivated in Europe are the flat oyster Ostrea edulis and the cupped oyster Crassostrea gigas. These species have two really different reproduction strategies...

Genetic improvement and selection in shellfish : a review based on oyster research and production (1997)

BOUDRY, Pierre, BARRE, Marc, GERARD, Andre

Despite the economic importance of shellfish, genetic improvement has not yet had a great impact on these species. Shellfish farming is traditionally based on wild species whose natural populations...

Genetic resources in cupped oysters: strain bank and molecular markers (1997)

BOUDRY, Pierre, HEURTEBISE, Serge, COLLET, Bertrand, CORNETTE, Florence, LEDU, Christophe, PHELIPOT, Pascal, ...

The cupped oyster strain bank was created at Ifremer at La Tremblade in 1992. It was funded by the Poitou-Charentes regional council. Its goals were: 1. to study the intra- and interspecific genetic...

Study of the genetic basis and variability of physiological characters involved in growth in the Pacific oyster (Crassostrea gigas) (1997)

COLLET, Bertrand, BOUDRY, Pierre, BOUGRIER, Serge, HEURTEBISE, Serge, PHELIPOT, Pascal, LEDU, Christophe, ...

A European programme (GENEPHYS) was launched in 1996 to study the genetic basis and variability of physiological characters involved in growth in Crassostrea gigas. This research programme was a...

History, experiments in progress, and perspectives of the selection programme for resistance to bonamiosis in the European flat oyster Ostrea edulis (1997)

BARRE, Marc, NACIRI, Yamama, BOUDRY, Pierre, GOYARD, Emmanuel, LAUNEY, Sophie, COCHENNEC, Nathalie, ...

The Aquaculture and Pathological Genetics (GAP) laboratory at La Tremblade has been monitoring three populations of European flat oyster since 1985 or 1989 under selection for higher survival rates...

Genetical improvement of marine fish and shellfish : a french perspective (1996)

BOUDRY, Pierre, CHATAIN, Beatrice, NACIRI-GRAVEN, Yamama, LEMAIRE, Christophe, GERARD, Andre

In France, marine fish and shellfish farming is based mainly on the breeding of wild species, whose natural populations are traditionally exploited. Research programs are conducted by IFREMER, in...

Controlling gametogenesis in cupped and flat oysters: the relationship between reproduction and genetics (1995)

GERARD, Andre, NACIRI-GRAVEN, Yamama, BOUDRY, Pierre, LAUNEY, Sophie, HEURTEBISE, Serge, LEDU, Christophe, ...

At the end of the 1980s, after two decades of aquaculture research in molluscs, Ifremer initiated its first genetic studies. These new studies quickly revealed the limits of knowledge in aquaculture,...

Fitness landscapes support the dominance theory of post-zygotic isolation in the mussels Mytilus edulis and M. galloprovincialis

Bierne, Nicolas, Bonhomme, François, Boudry, Pierre, Szulkin, Marta, David, Patrice

We studied the genetic basis of post-zygotic isolation in the marine mussels Mytilus edulis and Mytilus galloprovincialis. Evidence was obtained for a high number of recessive Dobzhansky–Muller...