Funding for this research was provided by:
Jiangsu Province (China) Key Project in Agriculture (No. BE2015310217)
National Key R&D Program of China (No. 2018YFD0700303)
Text and Data Mining valid from 2019-01-08
Received: 22 July 2018
Accepted: 26 December 2018
First Online: 8 January 2019
Compliance with Ethical Standards
: Lei Feng declares that she has no conflict of interest. Min Zhang declares that he has no conflict of interest. Benu Adhikari declares that he has no conflict of interest. Zhimei Guo declares that she has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Not applicable.