About the Authors

Uwe Ohler

To whom correspondence should be addressed. E-mail: uwe.ohler@duke.edu (UO); cburge@mit.edu (CBB)

¤ Current address: Institute for Genome Sciences and Policy, Duke University, Durham, North Carolina, United States of America

Affiliation Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America

Noam Shomron

Affiliation Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America

Christopher B Burge

To whom correspondence should be addressed. E-mail: uwe.ohler@duke.edu (UO); cburge@mit.edu (CBB)

Affiliation Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

UO and CBB conceived and designed the experiments. UO and NS performed the experiments. UO and NS analyzed the data. UO and CBB wrote the paper.