About the Authors

Peter Ralph

pralph@usc.edu (PR); gmcoop@ucdavis.edu (GC)

Address Current address: Department of Molecular and Computational Biology, University of Southern California, Los Angeles, California, United States of America

Affiliation Department of Evolution and Ecology & Center for Population Biology, University of California, Davis, California, United States of America

Graham Coop

pralph@usc.edu (PR); gmcoop@ucdavis.edu (GC)

Affiliation Department of Evolution and Ecology & Center for Population Biology, University of California, Davis, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: GC PR. Performed the experiments: GC PR. Analyzed the data: GC PR. Contributed reagents/materials/analysis tools: GC PR. Wrote the paper: GC PR.