About the Authors

Yan Li

Affiliation Department of Ecology and Evolution, University of Chicago, Chicago, Illinois, United States of America

Peter Roycewicz

Affiliation Committee on Genetics, University of Chicago, Chicago, Illinois, United States of America

Evadne Smith

Affiliation Department of Ecology and Evolution, University of Chicago, Chicago, Illinois, United States of America

Justin O. Borevitz

To whom correspondence should be addressed. E-mail: borevitz@uchicago.edu

Affiliations Department of Ecology and Evolution, University of Chicago, Chicago, Illinois, United States of America, Committee on Genetics, University of Chicago, Chicago, Illinois, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JB PR. Performed the experiments: PR ES. Analyzed the data: JB YL. Wrote the paper: YL. Other: Revised the paper: JB. Wrote the methods for growth chambers: PR.