YA-BING CHEN1, DAO-LIANG LAN2*, CHENG TANG1, XIAO-NONG YANG1 and JIAN LI2 1College of Life Science and Technology, Southwest University for Nationalities, Chengdu, Sichuan, PR China. 2Institute of Qinghai-Tibetan Plateau, Southwest University for Nationalities, Chengdu, Sichuan, PR China. *Corresponding author: Dao-Liang Lan, Institute of Qinghai-Tibetan Plateau, Southwe...