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. 2019 Feb 26;10:128. doi: 10.3389/fgene.2019.00128

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Copyright © 2019 Ma, Wang, Tian and Sun.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Sampling localities and distribution of cpDNA haplotypes of P. utilis and P. scandens. (B) Median-joining network of the cpDNA haplotypes of P. utilis and P. scandens.