Funding for this research was provided by:
National Natural Science Foundation of China (31625016, 31425016, 31671355)
Received: 16 November 2019
Accepted: 16 April 2020
First Online: 18 May 2020
Ethics approval and consent to participate
: Animal experimentation: This study was approved by the Ethical Review Committee in the Institute of Zoology, Chinese Academy of Sciences, China.
: The authors declare that they have no competing interests.