Funding for this research was provided by:
National Natural Science Foundation of China (NSFC 31601738)
US Department of Agriculture (MD-ENST-7377/Accession No. 1002600)
Received: 14 April 2019
Accepted: 30 August 2019
First Online: 21 October 2019
Ethics approval and consent to participate
: Not applicable.
: All authors consent to the publication of this manuscript.
: The authors declare that they have no competing interests.