About the Authors

J. Gregory Caporaso

Affiliation Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado, United States of America

Rob Knight

Affiliations Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado, United States of America, Howard Hughes Medical Institute, Boulder, Colorado, United States of America

Scott T. Kelley

gregcaporaso@gmail.com

Affiliation Department of Biology, San Diego State University, San Diego, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: STK. Performed the experiments: JGC. Analyzed the data: JGC. Contributed reagents/materials/analysis tools: JGC STK RK. Wrote the manuscript: JGC STK RK.