1. Institute for Genomic Biology, University of Illinois, Urbana, IL, USA
2. Department of Animal Sciences, University of Illinois, Urbana, IL, USA
3. Departments of Animal Sciences and Veterinary Pathobiology, University of Illinois, 382 Edward R. Madigan Laboratory, 1201 W. Gregory Dr., Urbana, IL 61801, USA
4. The Wellcome Trust Sanger Institute, Hinxton, UK
5. Roslin Institute, Edinburgh, UK
6. INRA-CEA, Jouy-en-Josas, France
7. INRA-Toulouse, France
8. Agricultural Research Service, Clay Center, NE, USA
9. The Alliance for Animal Genomics, Bethesda, MD, USA