1. Department of Plant Biology, The University of Georgia, Athens, GA 30602
2. Department of Genetics, The University of Georgia, Athens, GA 30602
3. These authors contributed equally to this work and are listed alphabetically
4. Department of Genetics, School of Medicine, Stanford University, Stanford, CA 94305
5. Ludwig Institute for Cancer Research, 3080 CMM-East, 9500 Gilman Drive, La Jolla, CA 92093
6. Department of Molecular and Cellular Biology, University of California, Berkeley, CA 94720
7. Department of Cell Biology, Duke University Medical Center, Durham, NC 27710
8. Department of Cellular and Molecular Medicine, Howard Hughes Medical Institute, School of Medicine, University of California, San Diego, La Jolla, CA 92093
9. Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46628
10. Department of Cell Biology and Anatomy, University of Tokyo, Graduate School of Medicine, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
11. Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
12. Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, CO 80309
13. Institute for Chemistry and Cell Biology, Harvard Medical School, Boston, MA 02115
14. Department of Biology and Program in Cell and Molecular Biology, Colorado State University, Fort Collins, CO 80523
15. Department of Biology, Indiana University, Bloomington, IN 47405
16. Adolf-Butenandt-Institut, Zellbiologie, University of Munich, Schillerstr. 42, 80336 Munich, Germany
17. Center for Genetics and Development and Section of Molecular and Cellular Biology, University of California, Davis, CA 95616
18. Department of Cellular and Molecular Pharmacology, Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143
19. Department of Biochemistry and Molecular Biology, Indiana University Medical Sciences Program, Bloomington, IN 47405
20. Department of Physiology and Biophysics, University of Washington School of Medicine, Seattle, WA 98195