Justin Johnson

Unraveling the genomic mosaic of a ubiquitous genus of marine cyanobacteria (2008)

Dufresne, Alexis, Ostrowski, Martin, Scanlan, David J, Garczarek, Laurence, Mazard, Sophie, Palenik, Brian P, ...

Abstract Background The picocyanobacterial genus Synechococcus occurs over wide oceanic expanses, having colonized most available niches in the photic zone. Large scale distribution patterns of the...

Unraveling the genomic mosaic of a ubiquitous genus of marine cyanobacteria (2008)

Dufresne, Alexis, Ostrowski, Martin, Scanlan, David J., Garczarek, Laurence, Mazard, Sophie, Palenik, Brian P., ...

Background: The picocyanobacterial genus Synechococcus occurs over wide oceanic expanses, having colonized most available niches in the photic zone. Large scale distribution patterns of the different...

CASE STUDY: NETWORK STRUCTURE & THE CONSOLIDATED LOGISTICS STRATEGY (2008)

JOHNSON, JUSTIN

The purpose of this dissertation is to gain a deeper understanding of the effects network structures have on the actors that operate within them. This topic is of research significance, because...

Aggressive assembly of pyrosequencing reads with mates (2008)

Miller, Jason R., Delcher, Arthur L., Koren, Sergey, Venter, Eli, Walenz, Brian P., Brownley, Anushka, ...

Motivation: DNA sequence reads from Sanger and pyrosequencing platforms differ in cost, accuracy, typical coverage, average read length and the variety of available paired-end protocols. Both read...

CASE STUDY: NETWORK STRUCTURE & THE CONSOLIDATED LOGISTICS STRATEGY (2008)

JOHNSON, JUSTIN

The purpose of this dissertation is to gain a deeper understanding of the effects network structures have on the actors that operate within them. This topic is of research significance, because...

Unravelling the genomic mosaic of a ubiquitous genus of marine cyanobacteria (2008)

Dufresne, Alexis, Ostrowski, Martin, Ferriera, Steve, Johnson, Justin, Post, Anton F, Hess, Wolfgang R, ...

Background: The picocyanobacterial genus Synechococcus occurs over wide oceanic expanses, having colonized most available niches in the photic zone. Large scale distribution patterns of the different...

Patterns and Implications of Gene Gain and Loss in the Evolution of Prochlorococcus (2007)

Gregory C. Kettler, Adam C. Martiny, Katherine Huang, Jeremy Zucker, Maureen L. Coleman, Sebastien Rodrigue, ...

Prochlorococcus is a marine cyanobacterium that numerically dominates the mid-latitude oceans and is the smallest known oxygenic phototroph. Numerous isolates from diverse areas of the world's oceans...

Patterns and Implications of Gene Gain and Loss in the Evolution of Prochlorococcus (2007)

Gregory C Kettler, Adam C. Martiny, Katherine Huang, Jeremy Zucker, Maureen Coleman, Sebastien Rodrigue, ...

Prochlorococcus is a marine cyanobacterium that numerically dominates the mid-latitude oceans, and is the smallest known oxygenic phototroph. Numerous isolates from diverse areas of the world's...

Survey Sequencing and Comparative Analysis of the Elephant Shark (Callorhinchus milii) Genome (2007)

Byrappa Venkatesh, Ewen F. Kirkness, Yong-Hwee Loh, Aaron L. Halpern, Alison P. Lee, Justin Johnson, ...

Owing to their phylogenetic position, cartilaginous fishes (sharks, rays, skates, and chimaeras) provide a critical reference for our understanding of vertebrate genome evolution. The relatively...

TreeSAAP: Selection on Amino Acid Properties using phylogenetic trees (2003)

Woolley, Steve, Johnson, Justin, Smith, Matthew J., Crandall, Keith A., McClellan, David A.

Summary: The software program TreeSAAP measures the selective influences on 31 structural and biochemical amino acid properties during cladogenesis, and performs goodness-of-fit and categorical...

Entry-Level Products with Consumer Learning

Justin Johnson

Dynamic motivations for the use of product line extensions in the form of entry-level products are considered. When consumers are uncertain of their valuations for products, and their purchasing...

Firm Entry with an Imperfect Labor Market

Justin Johnson

An economy is considered in which new firms require time to learn whether they will grow in size and profitability in the long run. The labor market is imperfectly competitive. I show that...

A Sanger/pyrosequencing hybrid approach for the generation of high-quality draft assemblies of marine microbial genomes

Goldberg, Susanne M. D., Johnson, Justin, Busam, Dana, Feldblyum, Tamara, Ferriera, Steve, Friedman, Robert, ...

Since its introduction a decade ago, whole-genome shotgun sequencing (WGS) has been the main approach for producing cost-effective and high-quality genome sequence data. Until now, the Sanger...

Survey Sequencing and Comparative Analysis of the Elephant Shark (Callorhinchus milii) Genome

Venkatesh, Byrappa, Kirkness, Ewen F, Loh, Yong-Hwee, Halpern, Aaron L, Lee, Alison P, Johnson, Justin, ...

Owing to their phylogenetic position, cartilaginous fishes (sharks, rays, skates, and chimaeras) provide a critical reference for our understanding of vertebrate genome evolution. The relatively...

Characterization of a marine gammaproteobacterium capable of aerobic anoxygenic photosynthesis

Fuchs, Bernhard M., Spring, Stefan, Teeling, Hanno, Quast, Christian, Wulf, Jörg, Schattenhofer, Martha, ...

Members of the gammaproteobacterial clade NOR5/OM60 regularly form an abundant part, up to 11%, of the bacterioplankton community in coastal systems during the summer months. Here, we report the...

Patterns and Implications of Gene Gain and Loss in the Evolution of Prochlorococcus

Kettler, Gregory C, Martiny, Adam C, Huang, Katherine, Zucker, Jeremy, Coleman, Maureen L, Rodrigue, Sebastien, ...

Prochlorococcus is a marine cyanobacterium that numerically dominates the mid-latitude oceans and is the smallest known oxygenic phototroph. Numerous isolates from diverse areas of the world's oceans...

Unraveling the genomic mosaic of a ubiquitous genus of marine cyanobacteria

Dufresne, Alexis, Ostrowski, Martin, Scanlan, David J, Garczarek, Laurence, Mazard, Sophie, Palenik, Brian P, ...

Local niche occupancy of marine Synechococcus lineages is facilitated by lateral gene transfers. Genomic islands act as repositories for these transferred genes.

Aggressive assembly of pyrosequencing reads with mates

Miller, Jason R., Delcher, Arthur L., Koren, Sergey, Venter, Eli, Walenz, Brian P., Brownley, Anushka, ...

Motivation: DNA sequence reads from Sanger and pyrosequencing platforms differ in cost, accuracy, typical coverage, average read length and the variety of available paired-end protocols. Both read...

The genomic basis of trophic strategy in marine bacteria

Lauro, Federico M., McDougald, Diane, Thomas, Torsten, Williams, Timothy J., Egan, Suhelen, Rice, Scott, ...

Many marine bacteria have evolved to grow optimally at either high (copiotrophic) or low (oligotrophic) nutrient concentrations, enabling different species to colonize distinct trophic habitats in...

Complete Genome Sequence of Erythrobacter litoralis HTCC2594▿

Oh, Hyun-Myung, Giovannoni, Stephen J., Ferriera, Steve, Johnson, Justin, Cho, Jang-Cheon

Erythrobacter litoralis has been known as a bacteriochlorophyll a-containing, aerobic, anoxygenic, phototrophic bacterium. Here we announce the complete genome sequence of E. litoralis HTCC2594,...