About the Authors

Jenna L. Morgan

Affiliations Department of Medical Microbiology and Immunology, University of California Davis, Davis, California, United States of America, Department of Evolution and Ecology, University of California Davis, Davis, California, United States of America, United States Department of Energy Joint Genome Institute, Walnut Creek, California, United States of America

Aaron E. Darling

Affiliations Department of Medical Microbiology and Immunology, University of California Davis, Davis, California, United States of America, Department of Evolution and Ecology, University of California Davis, Davis, California, United States of America

Jonathan A. Eisen

jaeisen@ucdavis.edu

Affiliations Department of Medical Microbiology and Immunology, University of California Davis, Davis, California, United States of America, Department of Evolution and Ecology, University of California Davis, Davis, California, United States of America, United States Department of Energy Joint Genome Institute, Walnut Creek, California, United States of America

Competing Interests

Jonathan Eisen is an associate with PLoS as Editor-in-Chief of PLoS Biology.

Author Contributions

Conceived and designed the experiments: JLM JAE. Performed the experiments: JLM. Analyzed the data: JLM AED. Wrote the paper: JLM AED JAE.