1. Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, 0316 Oslo, Norway
2. Department of Medical Biochemistry and Microbiology, Uppsala University, SE-751 23 Uppsala, Sweden
3. Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX 77843
4. Department of Organismic & Evolutionary Biology, Harvard University, Cambridge, MA 02138
5. Department of Molecular & Cellular Biology, Harvard University, Cambridge, MA 02138
6. Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138
7. HHMI, Harvard University, Cambridge, MA 02138