About the Authors
Biology Department, Duke University, Durham, North Carolina, United States of America
Laboratory of Genetics and Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, Wisconsin, United States of America
Duke Institute for Genome Sciences and Policy, Duke University, Durham, North Carolina, 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: MAFN SEM LL CSSH. Performed the experiments: BMW SEM LL CSSH. Analyzed the data: SEM LL SG CSSH TLH. Wrote the paper: SEM LL SG MAFN CSSH.