Frederick Cohan studies the origins of diversity in bacteria. He is intrigued by what is the same and different about species and speciation across all walks of life, and has investigated how the unique combination of enormous population size and rare but promiscuous genetic exchange in bacteria affect bacterial speciation and diversity. He is working to develop what he calls an “idiot’s guide” to bacterial systematics—a system to identify the most newly divergent products of speciation even when we know very little about the ecological and physiological differences between new species. He is a professor of biology at Wesleyan University. Please email for any articles you do not have access to: firstname.lastname@example.org
The molecular dimension of microbial species: 1. Ecological distinctions among, and homogeneity within, putative ecotypes of Synechococcus inhabiting the cyanobacterial mat of MushroomSpring,Yellowstone National Park (with Eric D. Becraft, Jason M. Wood, Douglas B. Rusch, Michael Kuhl, Sheila Jensen, Donald A. Bryant, David W. Roberts, and David M. Ward), Frontiers in Microbiology (2015)
Based on the Stable Ecotype Model, evolution leads to the divergence of ecologically distinct populations...
The molecular dimension of microbial species: 3. Comparative genomics of Synechococcus strains with different light responses and in situ diel transcription patterns of associated putative ecotypes in the Mushroom Spring microbial mat (with Millie T. Olsen, Shane Nowack, Jason M. Wood, Eric D. Becraft, Kurt LaButti, Anna Lipzen, Joel Martin, Wendy S. Shackwitz, Douglas B. Rusch, Donald A. Bryant, and David M. Ward), Frontiers in Microbiology (2015)
Genomes were obtained for three closely related strains of Synechococcus that are representative of putative...
Accuracy and efficiency of algorithms for the demarcation of bacterial ecotypes from DNA sequence data (with Juan Carlos Francisco and Danny Krizanc), International Journal of Bioinformatics Research and Applications (2014)
Identification of closely related, ecologically distinct populations of bacteria would benefit microbiologists working in many...
Genomic heterogeneity and ecological speciation within one subspecies of Bacillus subtilis (with Sarah Kopac, Zhang Wang, Jane Wiedenbeck, Jessica Sherry, and Martin Wu), Applied and Environmental Microbiology (2014)
Closely related bacterial genomes usually differ in gene content, suggesting that nearly every strain in...
Speedy speciation in a bacterial microcosm: new species can arise as frequently as adaptations within a species (with Alexander F. Koeppel, Joel O. Wertheim, Laura Barone, Nicole Gentile, and Danny Krizanc), ISME Journal (2013)
Species, Brenner's Encyclopedia of Genetics (2013)
The diversity of life is organized into clusters of related organisms that are similar in...
Are species cohesive?—A view from bacteriology, Bacterial Population Genetics: A Tribute to Thomas S. Whittam (2011)
A theory-based pragmatism for discovering and classifying newly divergent bacterial species (with Sarah Kopac), Genetics and Evolution of Infectious Diseases (2011)
Functional genomics in an ecological and evolutionary context: Maximizing the value of genomes in systems biology (with D. M. Ward, C. G. Klatt, J. Wood, and D. A. Bryant), Functional Genomics and Evolution of Photosynthetic Systems (2011)
Metagenomic approaches for the identification of microbial species (with D. M. Ward, M. C. Melendrez, E. D. Becraft, C. G. Klatt, and J. Wood), Handbook of Molecular Microbial Ecology, Volume I: Metagenomics and Complementary Approaches (2011)
Short reviews of articles
Comment on "Population genomics of early events in the ecological differentiation of bacteria" (with Sarah M. Kopac), Science (2012)
Prokaryotic sex: Eukaryote-like qualities of recombination in an Archaean lineage (with Stephanie Aracena), Current Biology (2012)
Microbial genomics: E. coli relatives out of doors and out of body (with S. Kopac), Current Biology (2011)
Synthetic genome: Now that we’re creators, what should we create?, Current Biology (2010)
Herbert W. Conn: Formative decades of microbiology and evolutionary biology (with Alexa Boesel), Microbe (2014)
Herbert W. Conn (1859–1917) made outstanding contributions to both microbiology and evolutionary biology, reflecting his...