| Affiliation: | (1) Department of Veterinary Pathobiology, Institute for Biosciences and Technology, Texas A&M University, 77843 College Station, Texas, USA;(2) the Center for Animal Genetics, Institute for Biosciences and Technology, Texas A&M University, 77843 College Station, Texas, USA;(3) Institute for Animal Breeding and Genetics, Hannover School of Veterinary Sciences, Bünteweg 17p, D-3000 Hannover 71, German;(4) Present address: Genentech Inc, 460 Point San Bruno Boulevard, Mailstop 6, 94080 South San Francisco, California, USA |
