Phylogenetic and pathogenic characterization of lumpy skin disease virus circulating in China

文献类型： 外文期刊

第一作者： Ren, Shanhui

作者： Ren, Shanhui;Chen, Haotai;Yuan, Lvfeng;Afera, Tadele Berihun;Wang, Huibao;Wang, Xiangwei;Lin, Yuguang;Yin, Xiangping;Sun, Yuefeng;Yang, Xue;Ma, Chunling;Rehman, Zaib Ur;Lin, Yuguang;Qiu, Xusheng

作者机构：

关键词： Dissemination; Lumpy skin disease virus; Phylogenetic; Pathogenicity; Surveillance

期刊名称：VIROLOGY （ 影响因子：3.7； 五年影响因子：3.2 ）

ISSN： 0042-6822

年卷期： 2023 年 585 卷

页码：

收录情况： SCI

摘要： The genomic characterization of emerging pathogens is critical for unraveling their origin and tracking their dissemination. Lumpy skin disease virus (LSDV) is a rapidly emerging pathogen in Asia including China. Although the first Lumpy skin disease (LSD) outbreak was reported in 2019, the origin, transmission, and evolutionary trajectory of LSDV in China have remained obscure. The viral genome of a circulating LSDV strain in China, abbreviated LSDV/FJ/CHA/2021, was sequenced using the next-generation sequencing technique. The morphology and cytoplasmic viral factory of these LSDV isolates were observed using transmission electron microscopy. Subsequently, the genomic characterization of this LSDV isolate was systematically analyzed for the first time using the bioinformatics software. The current study revealed that several mutations in the genome of LSDV isolates circulating in China were identified using single nucleotide polymorphisms (SNPs) analysis, an instrument to evaluate for continuous adaptive evaluation of a virus. Furthermore, phylogenomic analysis was used to identify the lineage using the whole genome sequences of 44 LSDV isolates. The result revealed that the isolates from China were closely similar to that of the LSDV isolates from Vietnam, which are divided into a monophyletic lineage sub-group I. The SNPs and Simplot analysis indicate no significant occurrence of the recombinant event on the genome of LSDV isolates in China. Notably, the live virus challenge experiment demonstrated that the pathogenic characterization of this LSDV isolate belongs to a virulent strain. Collectively, we gain the first insight into the evolutionary trajectory, spatiotemporal transmission, and pathogenic characterization of circulating LSDV in China. This study provides a unique reference for risk assessment, guiding diagnostics, and prevention in epizootic and non-epizootic areas.

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