[1] Huazhong Agr Univ, Key Lab Agr Anim Genet Breeding & Reprod, Minist Educ, Wuhan 430070, Peoples R China
[2] Huazhong Agr Univ, Key Lab Swine Genet & Breeding, Minist Agr, Wuhan 430070, Peoples R China
[3] Iowa State Univ, Dept Anim Sci, Ames, IA 50011 USA
[4] Iowa State Univ, Ctr Integrated Anim Genom, Ames, IA 50011 USA
[5] Chinese Acad Agr Sci, Dept Gene & Cell Engn, Inst Anim Sci, Beijing 100094, Peoples R China