Chengbin Xiao1,2, Yuan Fang1, Suomin Wang2 and Kai He1*
1. Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China 2. State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China *Correspondence:Kai He(hekai@lzu.edu.cn)