About the Authors

Alison F. Feder

afeder@stanford.edu

Affiliations Department of Biology, Stanford University, Stanford, California, United States of America, Department of Mathematics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Dmitri A. Petrov

Affiliation Department of Biology, Stanford University, Stanford, California, United States of America

Alan O. Bergland

Affiliation Department of Biology, Stanford University, Stanford, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AFF AOB DAP. Performed the experiments: AFF AOB. Analyzed the data: AFF AOB DAP. Contributed reagents/materials/analysis tools: AFF AOB. Wrote the paper: AFF AOB DAP.