Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (2662016PY107)
Chinese Ministry of Agriculture (CARS-28-15)
Text and Data Mining valid from 2019-04-05
Received: 8 June 2018
Accepted: 21 February 2019
First Online: 5 April 2019
Compliance with ethical standards
: The authors declare that they have no competing interests.
: No human or animal ethics approval was required for the completion of this study.
: Informed consent was obtained from all individual participants included in this study.