Funding for this research was provided by:
National Natural Science Foundation of China (31701472)
Natural Science Foundation in Jiangsu Province (BK20160712)
Jiangsu Collaborative Innovation Center for Modern Crop Production (No. 10)
Text and Data Mining valid from 2018-06-05
Received: 24 February 2018
Accepted: 28 May 2018
First Online: 5 June 2018
Compliance with ethical standards
: The authors declared they had no conflict of interest.
: The experiments in this manuscript complied with the current laws of the country in which they were performed.