About the Authors

Xiao-Ling Xu

Affiliations Institute of Animal Husbandry and Veterinary Medicine, Beijing Municipal Academy of Agriculture and Forestry Sciences, Beijing, China, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing, China

Wei Ma

Affiliation Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, China

Yu-Bo Zhu

Affiliation Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing, China

Chao Wang

Affiliation Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing, China

Bing-Yuan Wang

Affiliation Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing, China

Na An

Affiliation Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing, China

Lei An

Affiliation Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing, China

Yan Liu

Affiliation Institute of Animal Husbandry and Veterinary Medicine, Beijing Municipal Academy of Agriculture and Forestry Sciences, Beijing, China

Zhong-Hong Wu

Affiliation Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing, China

Jian-Hui Tian

tianjh@cau.edu.cn

Affiliation Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XLX WM JHT. Performed the experiments: XLX YBZ CW BYW NA. Analyzed the data: LA. Contributed reagents/materials/analysis tools: YL. Wrote the paper: XLX ZHW JHT.