1. Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
2. China Conservation and Research Center for the Giant Panda, Dujiangyan 611830, Sichuan, China
3. Key Laboratory of State Forestry and Grassland Administration on Conservation Biology of Rare Animals in The Giant Panda National Park, Dujiangyan 611830, Sichuan, China