Cheng, Zihan
Zhang, Xuemei
Yao, Wenjing
Zhao, Kai
Liu, Lin
Fan, Gaofeng
Zhou, Boru
Jiang, Tingbo
Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (2572018CL03)
111 Project (B16010)
National Natural Science Foundation of China (31570659)
Applied technology research and Development Program of Heilongjiang Province (GA20B401)
Article History
Received: 14 November 2020
Accepted: 2 February 2021
First Online: 24 February 2021
Ethics approval and consent to participate
: The plant material used in this study was di-haploid <i>Populus simonii</i> × <i>Populus nigra</i>, which was planted in the experimental field of Northeast Forestry University, Harbin, China, and no permits are required for the collection of plant samples. This study did not require ethical approval or consent as did not involve any endangered or protected species.
: Not applicable.
: The authors declare that they have no conflict of interest.