Funding for this research was provided by:
National Natural Science Foundation of China (31470690, 31570689)
the China Earmarked Fund for Modern Agro-industry Technology Research System (CARS-19)
Received: 26 July 2017
Accepted: 13 April 2018
First Online: 25 April 2018
Ethics approval and consent to participate
: Tea plants used in this study were cultivated in tea germplasm repository of Tea Research Institute of Fujian Academy of Agricultural Sciences (FAAS). This study was permitted by FAAS and conducted in accordance with stipulations of FAAS.
: The authors declare that they have no competing financial interests.
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