Funding for this research was provided by:
National Natural Science Foundation of China (31772260)
Chongqing Study Abroad Innovation Project (cx2019052)
Received: 25 July 2020
Accepted: 9 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: The four collected <i>Pilea</i> species are widely distributed in China as ornamental plants. Experimental researches do not include the genetic transformation, preserving the genetic background of the species used, and any other processes requiring ethics approval.
: Not applicable.
: The authors declare that they have no competing interests