Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2017JL017)
National Natural Science Foundation of China (31701505)
Text and Data Mining valid from 2019-02-28
Received: 7 August 2018
Accepted: 20 February 2019
First Online: 28 February 2019
Ethics approval and consent to participate
: The research in this study did not involve humans, animals, wild plants, endangered plants, or engineered plants. All the materials used in this study were provided by Chinese Academy of Sciences (CAS). This study was conducted with CAS’s permission to use the plant material and the experimental field.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.