Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (2572018CG02)
the National Natural Science Foundation of China (31170569)
the Innovation Project of State Key Laboratory of Tree Genetics and Breeding
Article History
Received: 23 March 2019
Accepted: 3 September 2019
First Online: 9 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.