1. State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
2. Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
5. College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering and Technology, Northwest A&F University, Xianyang, Shanxi 712100, China
6. Agriculture College, Yanbian University, Jilin 133002, China
7. National Stem Cell Resource Center, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China