We thank the Administration Bureau of Shennongjia National Park for their support in field work. We thank Bo Zhang, XuejunLuo, Hanlong Chen, Ruoshuang Liu for collecting samples.
This study was supported by the National Natural Science Foundation of China (31670397), and the National Key Technology R & D Program of China (2013BAD03B03, 2016YFC0503200). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
The following grant information was disclosed by the authors: National Natural Science Foundation of China: 31670397. National Key Technology R & D Program of China: 2013BAD03B03, 2016YFC0503200.