About the Authors

Scott H Williamson, Melissa J Hubisz, Carlos D Bustamante
Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York, United States of America

Andrew G Clark, Bret A Payseur
Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America

Rasmus Nielsen
Center for Bioinformatics and Department of Biology, University of Copenhagen, Copenhagen, Denmark

Corresponding Author

sw292@cornell.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

SHW, MJH, and BP analyzed the data. SHW wrote the first draft of the manuscript. All authors contributed to conceiving the idea and editing the manuscript.