1. College of Life Sciences, Institute of Reproductive Sciences Qingdao Agricultural University Qingdao China
2. State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Life Sciences Inner Mongolia University Hohhot China
3. Department of Molecular Medicine and Genetics, School of Basic Medical Sciences Shandong University Jinan Shandong China
4. School Hospital Qingdao Agricultural University Qingdao China
5. Department of Animal Sciences Auburn University Auburn Alabama USA
6. Department of Cell Systems and Anatomy UT Health San Antonio Texas USA