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: fcohan@wesleyan.edu 

Articles

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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)
 

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Demarcation of bacterial ecotypes from DNA sequence data: A comparative analysis of four algorithms (with Juan Carlos Francisco and Danny Krizanc), 2nd IEEE International Conference on Computational Advances in Bio and Medical Sciences (ICCABS) (2012)
 

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Diversity of Bacteria and Archaea in hypersaline sediment from Death Valley National Park, California (with J.-S. Kim, M. Makama, J. Petito, N.-H. Park, and R. S. Dungan), MicrobiologyOpen (2012)
 

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Diversity of Bacteria and Archaea in hypersaline sediment from Death Valley National Park, California (with J.-S. Kim, M. Makama, J. Petito, N.-H. Park, and R. S. Dungan), MicrobiologyOpen (2012)
 

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The quorum sensing diversity within and between ecotypes of Bacillus subtilis (with Polonca Stefanic, Francesca Decorosi, Carlo Viti, Janine Petito, and Ines Mandic-Mulec), Environmental Microbiology (2012)
 

Book chapters

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Species, Brenner's Encyclopedia of Genetics (2013)

The diversity of life is organized into clusters of related organisms that are similar in...

 

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Are species cohesive?—A view from bacteriology, Bacterial Population Genetics: A Tribute to Thomas S. Whittam (2011)
 

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A theory-based pragmatism for discovering and classifying newly divergent bacterial species (with Sarah Kopac), Genetics and Evolution of Infectious Diseases (2011)
 

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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)
 

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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

Popular press

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Science needs more Moneyball, American Scientist (2012)
 

Interview

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Q & A: Frederick Cohan, Current Biology (2011)