About the Authors

Sriram Sankararaman, David Reich
Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America

Sriram Sankararaman, Nick Patterson, Heng Li, David Reich
Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America

Svante Pääbo
Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Corresponding Authors

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SS NP SP DR. Performed the experiments: SS NP HL . Analyzed the data: SS NP HL DR. Contributed reagents/materials/analysis tools: SS NP HL. Wrote the paper: SS SP DR.