Daniel Falush

Inferring genomic flux in bacteria (2009)

Didelot, Xavier, Darling, Aaron, Falush, Daniel

Acquisition and loss of genetic material are essential forces in bacterial microevolution. They have been repeatedly linked with adaptation of lineages to new lifestyles, and in particular,...

SimMLST: simulation of multi-locus sequence typing data under a neutral model (2009)

Didelot, Xavier, Lawson, Daniel, Falush, Daniel

Summary: Multi-locus sequence typing (MLST) is a widely used method of characterization of bacterial isolates. It has been applied to over 50 000 isolates in over 50 different species. Here, we...

An African origin for the intimate association between humans and Helicobacter pylori (2007)

Linz, Bodo, Balloux, Francois, Moodley, Yoshan, Manica, Andrea, Liu, Hua, Roumagnac, Philippe, ...

Infection of the stomach by Helicobacter pylori is ubiquitous among humans. However, although H. pylori strains from different geographic areas are associated with clear phylogeographic...

An African origin for the intimate association between humans and Helicobacter pylori (2007)

Linz, Bodo, Balloux, Francois, Moodley, Yoshan, Manica, Andrea, Liu, Hua, Roumagnac, Philippe, ...

Infection of the stomach by Helicobacter pylori is ubiquitous among humans. However, although H. pylori strains from different geographic areas are associated with clear phylogeographic...

A bimodal pattern of relatedness between the Salmonella Paratyphi A and Typhi genomes: Convergence or divergence by homologous recombination? (2007)

Didelot, Xavier, Achtman, Mark, Parkhill, Julian, Thomson, Nicholas R., Falush, Daniel

All Salmonella can cause disease but severe systemic infections are primarily caused by a few lineages. Paratyphi A and Typhi are the deadliest human restricted serovars, responsible for ∼600,000...

Sex and virulence in Escherichia coli: an evolutionary perspective (2006)

Wirth, Thierry, Falush, Daniel, Lan, Ruiting, Colles, Frances, Mensa, Patience, Wieler, Lothar H., ...

Pathogenic Escherichia coli cause over 160 million cases of dysentery and one million deaths per year, whereas non-pathogenic E. coli constitute part of the normal intestinal flora of healthy mammals...

Multilocus sequence typing, BURST, genealogical inference, comparative genomics, recombination (2006)

Xavier Didelot, Daniel Falush, Key Words, Daniel Falush

We describe a model-based method for using multilocus sequence data to infer the clonal relation-ships of bacteria and the chromosomal position of homologous recombination events that disrupt a...

A bimodal pattern of relatedness between the Salmonella Paratyphi A and Typhi genomes: Convergence or divergence by homologous recombination (2006)

Didelot, Xavier, Achtman, Mark, Parkhill, Julian, Thomson, Nicholas R., Falush, Daniel

All Salmonella can cause disease but severe systemic infections are primarily caused by a few lineages. Paratyphi A and Typhi are the deadliest human restricted serovars, responsible for ∼600,000...

Distinguishing human ethnic groups by means of sequences from Heliclobacter pylori: Lessons from Ladakh (2004)

Wirth,Thierry, Wang,Xiaoyan, Linz,Bodo, Novick,Richard P., Lum,J. Koji, Blaser,Martin, ...

The history of mankind remains one of the most challenging fields of study. However, the emergence of anatomically modern humans has been so recent that only a few genetically informative...

A new model for prediction of the age of onset and penetrance for Huntington's disease based on CAG length (2004)

Langbehn,Douglas R., Brinkman,Ryan R., Falush,Daniel, Paulsen,Jane S., Hayden,M. R.

Huntington's disease (HD) is a neurodegenerative disorder caused by an unstable CAG repeat. For patients at risk, participating in predictive testing and learning of having CAG expansion, a major...

Inference of population structure using multilocus genotype data: Linked loci and correlated allele frequencies (2003)

Falush,Daniel, Stephens,Matthew, Pritchard,Jonathan K.

We describe extensions to the method of Pritchard et al. for inferring population structure from multilocus genotype data. Most importantly, we develop methods that allow for linkage between loci....

Traces of human migrations in Helicobacter pylori populations (2003)

Falush,Daniel, Wirth,Thierry, Linz,Bodo, Pritchard,Jonathan K., Stephens,Matthew, Kidd,Mark, ...

Helicobacter pylori, a chronic gastric pathogen of human beings, can be divided into seven populations and subpopulations with distinct geographical distributions. These modern populations derive...

Recombination and mutation during long-term gastric colonization by Helicobacter pylori: Estimates of clock rates, recombination size, and minimal age (2001)

Falush,Daniel, Kraft,Christian, Taylor,Nancy S., Correa,Pelayo, Fox,James G., Achtman,Mark, ...

The bacterium Helicobacter pylori colonizes the gastric mucosa of half of the human population, resulting in chronic gastritis, ulcers, and cancer. We sequenced ten gene fragments from pairs of...

Fit genotypes and escape variants of subgroup III Neisseria meningitidis during three pandemics of epidemic meningitis

Zhu, Peixuan, Van Der Ende, Arie, Falush, Daniel, Brieske, Norbert, Morelli, Giovanna, Linz, Bodo, ...

The genetic variability at six polymorphic loci was examined within a global collection of 502 isolates of subgroup III, serogroup A Neisseria meningitidis. Nine “genoclouds” were identified,...

Recombination and mutation during long-term gastric colonization by Helicobacter pylori: Estimates of clock rates, recombination size, and minimal age

Falush, Daniel, Kraft, Christian, Taylor, Nancy S., Correa, Pelayo, Fox, James G., Achtman, Mark, ...

The bacterium Helicobacter pylori colonizes the gastric mucosa of half of the human population, resulting in chronic gastritis, ulcers, and cancer. We sequenced ten gene fragments from pairs of...

Distinguishing human ethnic groups by means of sequences from Helicobacter pylori: Lessons from Ladakh

Wirth, Thierry, Wang, Xiaoyan, Linz, Bodo, Novick, Richard P., Lum, J. Koji, Blaser, Martin, ...

The history of mankind remains one of the most challenging fields of study. However, the emergence of anatomically modern humans has been so recent that only a few genetically informative...

Sequence Typing and Comparison of Population Biology of Campylobacter coli and Campylobacter jejuni

Dingle, Kate E., Colles, Frances M., Falush, Daniel, Maiden, Martin C. J.

A multilocus sequence typing (MLST) scheme that uses the same loci as a previously described system for Campylobacter jejuni was developed for Campylobacter coli. The C. coli-specific primers were...

Measurement of Mutational Flow Implies Both a High New-Mutation Rate for Huntington Disease and Substantial Underascertainment of Late-Onset Cases

Falush, Daniel, Almqvist, Elisabeth W., Brinkmann, Ryan R., Iwasa, Yoh, Hayden, Michael R.

We describe a new approach for analysis of the epidemiology of progressive genetic disorders that quantifies the rate of progression of the disease in the population by measuring the mutational flow....

Genomic Changes during Chronic Helicobacter pylori Infection

Kraft, Christian, Stack, Allison, Josenhans, Christine, Niehus, Eike, Dietrich, Guido, Correa, Pelayo, ...

The gastric pathogen Helicobacter pylori shows tremendous genetic variability within human populations, both in gene content and at the sequence level. We investigated how this variability arises by...

Inference of population structure using multilocus genotype data: linked loci and correlated allele frequencies.

Falush, Daniel, Stephens, Matthew, Pritchard, Jonathan K

We describe extensions to the method of Pritchard et al. for inferring population structure from multilocus genotype data. Most importantly, we develop methods that allow for linkage between loci....

Sex and virulence in Escherichia coli: an evolutionary perspective

Wirth, Thierry, Falush, Daniel, Lan, Ruiting, Colles, Frances, Mensa, Patience, Wieler, Lothar H, ...

Pathogenic Escherichia coli cause over 160 million cases of dysentery and one million deaths per year, whereas non-pathogenic E. coli constitute part of the normal intestinal flora of healthy mammals...

Fit genotypes and escape variants of subgroup III Neisseria meningitidis during three pandemics of epidemic meningitis

Zhu, Peixuan, Van Der Ende, Arie, Falush, Daniel, Brieske, Norbert, Morelli, Giovanna, Linz, Bodo, ...

The genetic variability at six polymorphic loci was examined within a global collection of 502 isolates of subgroup III, serogroup A Neisseria meningitidis. Nine “genoclouds” were identified,...

Recombination and mutation during long-term gastric colonization by Helicobacter pylori: Estimates of clock rates, recombination size, and minimal age

Falush, Daniel, Kraft, Christian, Taylor, Nancy S., Correa, Pelayo, Fox, James G., Achtman, Mark, ...

The bacterium Helicobacter pylori colonizes the gastric mucosa of half of the human population, resulting in chronic gastritis, ulcers, and cancer. We sequenced ten gene fragments from pairs of...

Distinguishing human ethnic groups by means of sequences from Helicobacter pylori: Lessons from Ladakh

Wirth, Thierry, Wang, Xiaoyan, Linz, Bodo, Novick, Richard P., Lum, J. Koji, Blaser, Martin, ...

The history of mankind remains one of the most challenging fields of study. However, the emergence of anatomically modern humans has been so recent that only a few genetically informative...

Sequence Typing and Comparison of Population Biology of Campylobacter coli and Campylobacter jejuni

Dingle, Kate E., Colles, Frances M., Falush, Daniel, Maiden, Martin C. J.

A multilocus sequence typing (MLST) scheme that uses the same loci as a previously described system for Campylobacter jejuni was developed for Campylobacter coli. The C. coli-specific primers were...

Measurement of Mutational Flow Implies Both a High New-Mutation Rate for Huntington Disease and Substantial Underascertainment of Late-Onset Cases

Falush, Daniel, Almqvist, Elisabeth W., Brinkmann, Ryan R., Iwasa, Yoh, Hayden, Michael R.

We describe a new approach for analysis of the epidemiology of progressive genetic disorders that quantifies the rate of progression of the disease in the population by measuring the mutational flow....

Genomic Changes during Chronic Helicobacter pylori Infection

Kraft, Christian, Stack, Allison, Josenhans, Christine, Niehus, Eike, Dietrich, Guido, Correa, Pelayo, ...

The gastric pathogen Helicobacter pylori shows tremendous genetic variability within human populations, both in gene content and at the sequence level. We investigated how this variability arises by...

Inference of population structure using multilocus genotype data: linked loci and correlated allele frequencies.

Falush, Daniel, Stephens, Matthew, Pritchard, Jonathan K

We describe extensions to the method of Pritchard et al. for inferring population structure from multilocus genotype data. Most importantly, we develop methods that allow for linkage between loci....

Sex and virulence in Escherichia coli: an evolutionary perspective

Wirth, Thierry, Falush, Daniel, Lan, Ruiting, Colles, Frances, Mensa, Patience, Wieler, Lothar H, ...

Pathogenic Escherichia coli cause over 160 million cases of dysentery and one million deaths per year, whereas non-pathogenic E. coli constitute part of the normal intestinal flora of healthy mammals...

Inference of Bacterial Microevolution Using Multilocus Sequence Data

Didelot, Xavier, Falush, Daniel

We describe a model-based method for using multilocus sequence data to infer the clonal relationships of bacteria and the chromosomal position of homologous recombination events that disrupt a clonal...

A bimodal pattern of relatedness between the Salmonella Paratyphi A and Typhi genomes: Convergence or divergence by homologous recombination?

Didelot, Xavier, Achtman, Mark, Parkhill, Julian, Thomson, Nicholas R., Falush, Daniel

All Salmonella can cause disease but severe systemic infections are primarily caused by a few lineages. Paratyphi A and Typhi are the deadliest human restricted serovars, responsible for ∼600,000...

Inference of population structure using multilocus genotype data: dominant markers and null alleles

FALUSH, DANIEL, STEPHENS, MATTHEW, PRITCHARD, JONATHAN K

Dominant markers such as amplified fragment length polymorphisms (AFLPs) provide an economical way of surveying variation at many loci. However, the uncertainty about the underlying genotypes...

Mismatch induced speciation in Salmonella: model and data

Falush, Daniel, Torpdahl, Mia, Didelot, Xavier, Conrad, Donald F, Wilson, Daniel J, Achtman, Mark

In bacteria, DNA sequence mismatches act as a barrier to recombination between distantly related organisms and can potentially promote the cohesion of species. We have performed computer simulations...

Inferring Human Colonization History Using a Copying Model

Hellenthal, Garrett, Auton, Adam, Falush, Daniel

Genome-wide scans of genetic variation can potentially provide detailed information on how modern humans colonized the world but require new methods of analysis. We introduce a statistical approach...

Mosaic DNA Imports with Interspersions of Recipient Sequence after Natural Transformation of Helicobacter pylori

Kulick, Stefan, Moccia, Claudia, Didelot, Xavier, Falush, Daniel, Kraft, Christian, Suerbaum, Sebastian

Helicobacter pylori colonizes the gastric mucosa of half of the human population, causing gastritis, ulcers, and cancer. H. pylori is naturally competent for transformation by exogenous DNA, and...

Natural Transformation of Helicobacter pylori Involves the Integration of Short DNA Fragments Interrupted by Gaps of Variable Size

Lin, Edward A., Zhang, Xue-Song, Levine, Steven M., Gill, Steven R., Falush, Daniel, Blaser, Martin J.

Helicobacter pylori are gram-negative bacteria notable for their high level of genetic diversity and plasticity, features that may play a key role in the organism's ability to colonize the human...

Inferring genomic flux in bacteria

Didelot, Xavier, Darling, Aaron, Falush, Daniel

Acquisition and loss of genetic material are essential forces in bacterial microevolution. They have been repeatedly linked with adaptation of lineages to new lifestyles, and in particular,...

Host-associated Genetic Import in Campylobacter jejuni

McCarthy, Noel D., Colles, Frances M., Dingle, Kate E., Bagnall, Mary C., Manning, Georgina, Maiden, Martin C.J., ...

C. jejuni genomes have a host signature that enables attribution of isolates to animal sources.

Toward the Use of Genomics to Study Microevolutionary Change in Bacteria

Falush, Daniel

Bacteria evolve rapidly in response to the environment they encounter. Some environmental changes are experienced numerous times by bacteria from the same population, providing an opportunity to...