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Whole-genome analysis reveals possible sources of ALV-J infection in an anyi tile-like gray chicken flock

文献类型： 外文期刊

作者： Li, Hai-Qin 1 ; Zhang, Fan-fan 1 ; Chen, Longfei 2 ; Yang, Qun 1 ; Zeng, Yan-Bing 1 ; Tan, Jia 1 ; Fu, Guang-Hua 3 ; Fu, Qiu-Ling 3 ; Liu, Rong-Chang 3 ; Huang, Yu 3 ; Su, Qi 2 ; Tan, Mei-Fang 1 ; Kang, Zhao-Feng 1 ;

作者机构： 1.Jiangxi Acad Agr Sci, Inst Anim Husb & Vet Med, Nanchang 330200, Jiangxi, Peoples R China

2.Shandong Agr Univ, Coll Anim Med, Tai An 271000, Shandong, Peoples R China

3.Fujian Acad Agr Sci, Inst Anim Husb & Vet Med, Fuzhou 350013, Peoples R China

关键词： avian leukosis virus; subgroup J; local chickens; epidemiology; whole genome

期刊名称：POULTRY SCIENCE （ 影响因子：4.014； 五年影响因子：4.192 ）

ISSN：

年卷期： 2022 年 101 卷 5 期

页码：

收录情况： SCI

摘要： Avian leukosis virus (ALV) induces multiple tumors in chicken and is still prevalent in a lot of local flocks in China. In this study, we analyzed the ALV infection status in an Anyi tile-like gray chicken flock by DF1-cells isolation, virus identification, and genome sequencing. Results showed a 29% (29/100) ALV positive rate in this flock. Homology analysis based on env genes illustrated that all these stains belong to subgroup J (92-100% identities) and can be further divided into 5 batches, suggesting a higher diversity of ALV-J within the same flock. The whole-genome analysis of representative stains from each batch confirmed the close relationship between these isolated strains with previously reported strains from different regions (Guangxi, Shandong, and Heilongjiang), revealing the enrichment of different strains in Anyi tile-like grey chickens. This study provides the epidemiological data of ALV-J in a special chicken flock and a reference for the further eradication of ALV in China.

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