About the Authors

Jennifer L. Caswell

Affiliations Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America, Department of Anthropology, Harvard College, Cambridge, Massachusetts, United States of America, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America

Swapan Mallick

Affiliations Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America

Daniel J. Richter

Affiliations Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America, Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California, United States of America

Julie Neubauer

Affiliations Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America

Christine Schirmer

Affiliations Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America

Sante Gnerre

Affiliation Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America

David Reich

reich@genetics.med.harvard.edu

Affiliations Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JC DR. Performed the experiments: JC JN CS DR. Analyzed the data: JC SM DJR JN SG DR. Contributed reagents/materials/analysis tools: JC SM DJR SG DR. Wrote the paper: JC DR.