1. Department of Zoology, Michigan State University, East Lansing, MI 48824, USA.
2. BEACON Center for the Study of Evolution in Action, Michigan State University, East Lansing, MI 48824, USA.
3. Department of Genetics, University of Wisconsin, Madison, WI 53706, USA.
4. Biotechnology Center, University of Wisconsin, Madison, WI 53706, USA.
5. Department of Biochemistry, University of Wisconsin, Madison, WI 53706, USA.
6. Department of Cancer Immunology and AIDS, Dana-Farber Cancer Institute, Boston, MA 02115, USA.
7. Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA.
8. Broad Institute of Harvard and MIT, Cambridge, MA 02141, USA.
9. Department of Biochemistry and Cell Biology and Department of Chemistry, Rice University, Houston, TX 77005, USA.
10. Department of Pharmacology and Department of Neuroscience, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
11. Department of Molecular and Cellular Medicine, Texas A&M University, College Station, TX 77483, USA.
12. Department of Biology, New Mexico State University, Las Cruces, NM 88003, USA.
13. Department of Biology, University of Louisiana, Lafayette, LA 70503, USA.
14. University of Texas, Austin, TX 78712, USA.
15. The Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, The Marine Biological Laboratory, Woods Hole, MA 02543, USA.
16. Systemix Institute, Redmond, WA 98053, USA.