Funding for this research was provided by:
National Natural Science Foundation of China (31171588)
Received: 22 March 2019
Accepted: 30 July 2019
First Online: 13 August 2019
Ethics approval and consent to participate
: Line 160S were screened by the corresponding author and kept in our lab. We confirm that no field experiments were involved in this study.
: Not applicable.
: The authors declare that they have no competing interests.