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. 2023 May 31;14:1186322. doi: 10.3389/fmicb.2023.1186322

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Copyright © 2023 Li, Li, Guo, Xu, Gong, Sun, Zhao, Xiang, Leng, Peng, Zhou, Tang, Liu, An, Cai, Tian, Wang and Zhang.

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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Phylogenetic analysis of GP5 and NSP2 genes of new-branch PRRSV. (A) Phylogenetic tree constructed based on the GenBank dataset (n = 2,127) of the sublineage 8.7 PRRSV ORF5 gene from China; (B) Phylogenetic tree constructed based on the ORF5 gene of new-branch PRRSV isolates and reference strains from different sublineages; (C) Phylogenetic tree constructed based on the NSP2 gene of new-branch PRRSV isolates and reference strains from different sublineages. The new-branch PRRSV strains obtained in this study are labeled with red triangles (▲). The strains obtained from GenBank belonging to the new branch are marked with blue squares (■).