About the Authors

Annalise B. Paaby

paaby@sas.upenn.edu

Affiliation Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Paul S. Schmidt

Affiliation Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PS AP. Performed the experiments: AP. Analyzed the data: AP. Contributed reagents/materials/analysis tools: PS. Wrote the paper: AP.