Fig. 1

Geographic distribution of the studied Chinese donkey breeds showed in a partial map of China. HT and XJ indicate Hetian Gray donkeys and Xinjiang donkeys in the Xinjiang Uygur Autonomous Region (purple), respectively; YN, Yunnan donkeys in Yunnan province (pink); GZ, Guanzhong donkeys in Shaanxi province (light green); GL, Guangling donkeys in Shanxi province (deep green); DZ, Dezhou donkeys in Shandong province (blue); HBH, Huaibei Gray donkeys in Anhui province (yellow)