About the Authors
- Peter Ralph, Graham Coop
- Department of Evolution and Ecology & Center for Population Biology, University of California, Davis, California, United States of America
The authors have declared that no competing interests exist.
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.