Isolation and characterization of a new goose orthoreovirus causing liver and spleen focal necrosis in geese, China

被引:14
|
作者
Huang, Yunzhen [1 ]
Zhang, Junqin [1 ]
Dong, Jiawen [1 ]
Li, Linlin [1 ]
Kuang, Ruihuan [1 ]
Sun, Minhua [1 ]
Liao, Ming [2 ]
机构
[1] Guangdong Acad Agr Sci, Inst Anim Hlth, Key Lab Livestock Dis Prevent & Treatment Guangdo, Sci Observat & Expt Stn Vet Drugs & Diagnost Tech, Guangzhou, Peoples R China
[2] Guangdong Acad Agr Sci, Guangzhou 510640, Peoples R China
关键词
complete genome; focal necrosis; goose; orthoreovirus; AVIAN REOVIRUS; MOLECULAR CHARACTERIZATION; SEQUENCE; DISEASE;
D O I
10.1111/tbed.14236
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Since July 2020, an infectious disease characterized by liver and spleen white focal necrosis has been spreading widely through geese farms in many regions of China. A novel goose orthoreovirus (GRV), designated GRV-GD2020, was isolated from the liver and spleen of dead geese. Phylogenetic analysis and sequence comparison revealed that all the genes of GRV-GD2020 clustered with other waterfowl-origin orthoreovirus. However, the gene constellation of GRV-GD2020 was not similar to that of any particular strain. Instead, the genomic segments of GRV-GD2020 showed 27.5-97.3% similarities to that of other waterfowl-origin orthoreovirus isolates. Waterfowl-origin orthoreovirus infections characterized by liver and spleen focal necrosis had not emerged in recent years. The re-emergence of the disease may be related to the recombination of the genome segments of Muscovy duck reovirus (MDRV), GRV, and new-type duck orthoreovirus. In summary, we determined that the GRV-GD2020 strain, causing goose liver and spleen focal necrosis, is a new variant of waterfowl-origin orthoreovirus.
引用
收藏
页码:3028 / 3034
页数:7
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