Funding for this research was provided by:
National Natural Science Foundation of China (31640083)
National Key R&D Program of China (2017YFD0501600)
Chinese Academy of Agricultural Sciences Foundation (1610302017010)
Text and Data Mining valid from 2019-02-07
Received: 27 November 2018
Revised: 18 January 2019
Accepted: 22 January 2019
First Online: 7 February 2019
Compliance with ethical standards
: The authors declare that they have no competing interests.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.