1. Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
2. Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, China
3. College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
4. The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China