1. National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences 1 , Beijing, China
2. College of Life Sciences, University of Chinese Academy of Sciences 2 , Beijing, China
3. State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, and Center for Life Sciences, School of Life Sciences, Yunnan University 3 , Kunming, China