1. School of Biomedical Sciences (L.C., J.L., Y.L., C.H.K.C.), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China;
2. College of Life Sciences (J.L.), Northwest Normal University, Lanzhou, China;
3. State Key Laboratory of Freshwater Ecology and Biotechnology (W.H.), Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China