About the Authors
Department of Genetics, Harvard Medical School, Department of Molecular Biology and Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
Institut Jacques Monod, Centre National de la Recherche Scientifique, Universities Paris 6 and 7, Paris, France
Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America
The authors have declared that no competing interests exist.
ERT, M-AF, and FMA conceived and designed the experiments. ERT and M-AF performed the experiments. ERT, M-AF, and NKW analyzed the data. AB contributed reagents/materials/analysis tools. ERT, M-AF, and FMA wrote the paper.