1. 1Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO
2. 2Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA
3. 3Department of Biology, University of Virginia, Charlottesville, VA
4. 4Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA
5. 5Department of Biological Sciences, University of Notre Dame, IN
6. 6Department of Biology, University of Utah, Salt Lake City, UT
7. 7Genome Sequencing Center, Washington University School of Medicine, St. Louis, MO