About the Authors
Max-Planck-Institute for Evolutionary Anthropology, Leipzig, Germany
WE Informatik, Bioinformatik, University of Düsseldorf, Düsseldorf, Germany
European Molecular Biology Laboratory, Heidelberg, Germany
The authors have declared that no conflicts of interest exist.
PK, GW, ML, WE, and SP conceived and designed the experiments. PK performed the experiments. PK, GW, ML, IH, and BM analyzed the data. IH, UW, WA, and SP contributed reagents/materials/analysis tools. PK, ML, and SP wrote the paper.