Funding for this research was provided by:
National Natural Science Foundation of China (31571677)
Molecular design breeding of Maize (2016YFD0101803)
Science Foundation for The Excellent Youth Scholars of Henan Academy of Agricultural Sciences (2016YQ03)
Industry technology system of Henan Province (S2010-02-02)
Supported by Research Program of Foundation and Advanced Technology of Henan Province (0610032000)
Received: 15 December 2017
Accepted: 6 September 2018
First Online: 12 September 2018
Ethics approval and consent to participate
: <i>Zea mays</i> L. inbred line B73 was used in our study. This project uses plant materials and does not utilize transgenic technology. It does not require ethical approval.
: Not applicable.
: The authors declare that they have no competing interests.
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