Affiliation: | (1) U.S. Department of Agriculture, Agricultural Research Service, Roman L. Hruska U.S. Meat Animal Research Center, PO Box 166, State Spur 18D, Clay Center, Nebraska 68933, USA, US;(2) AgResearch Molecular Biology Unit, Department of Biochemistry and Centre for Gene Research, University of Otago, 676 Cumberland St., PO Box 56, Dunedin, New Zealand, NZ |