About the Authors

Ana Y Signorovitch

¤ Current address: Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Affiliation Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, United States of America

Leo W Buss

Affiliations Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, United States of America , Department of Geology and Geophysics, Yale University, New Haven, Connecticut, United States of America

Stephen L Dellaporta

To whom correspondence should be addressed. E-mail: stephen.dellaporta@yale.edu

Affiliation Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

LWB and SLD conceived and designed the experiments. AYS performed the experiments. AYS, LWB, and SLD analyzed the data and wrote the paper.