Funding for this research was provided by:
the National Key Basic Research Program (973 Program) of China (2015CB150300)
the Elite Program of Chinese Academy of Agricultural Sciences
Received: 15 June 2018
Accepted: 14 October 2018
First Online: 6 November 2018
Ethics approval and consent to participate
: All experiments in this study were approved by the Science and Technology Agency of Jiangsu Province [Approval number: SYXK (SU) 2010–0005].
: Not applicable.
: The authors declare that they have no competing interests.
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