Funding for this research was provided by:
National Natural Science Foundation of China (31860525)
Agricultural Research Service (1215-22000-302-00D)
Article History
Received: 24 January 2019
Accepted: 10 April 2019
First Online: 10 May 2019
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: This article does not contain any research involving humans or animals.