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. 2021 Feb 26;11:4797. doi: 10.1038/s41598-021-84189-7

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Sequences analysis of 71 ALV-J strains isolated in this study. (A) Phylogenetic analysis based on the env sequences of 71 ALV strains isolated in this study using the maximum likelihood method with 1000 bootstrap replications. The bar indicates genetic distance; strains in the same branch are labeled with the same color using Adobe Illustrator CS6; (B) similarity analysis heat map of 71 ALV strains isolated in this study; on both sides of the main figure is the virus strains, and in the middle is the similarity value (upper right: similarity of nucleotide sequences; lower left: similarity of amino acid sequences); different identity values are expressed in progressive colours ranging from 80 to 100%.