The isolation and identification of novel duck reovirus.
- Author:
Shao-Ying CHEN
1
;
Shi-Long CHEN
;
Feng-Qiang LIN
;
Shao WANG
;
Bin JIANG
;
Xiao-Xia CHENG
;
Xiao-Li ZHU
;
Zhao-Long LI
Author Information
1. Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China. chensy58@163.com
- Publication Type:Journal Article
- MeSH:
Animals;
Animals, Wild;
virology;
Bird Diseases;
pathology;
virology;
Chick Embryo;
China;
Ducks;
Molecular Sequence Data;
Orthoreovirus, Avian;
classification;
genetics;
isolation & purification;
Phylogeny;
Reoviridae Infections;
pathology;
veterinary;
virology;
Viral Proteins;
genetics
- From:
Chinese Journal of Virology
2012;28(3):224-230
- CountryChina
- Language:Chinese
-
Abstract:
The virus strains were isolated from the liver and spleen of the dead young ducks characterized with symptoms of hemorrhagic-necrotic hepatitis. These isolates could cause the death of muscovy duck-embryo and chick-embryo. 1-day-old birds infected with these isolates had the same character with clinically dead birds and the virus could be isolated from artificially infected birds. These isolates could proliferate in MDEF and result in CPE. The virus could proliferate in the cytoplasm in order of crystals and arranged in the latlic-like. The viron was shown spherical, icosahedron, cubic symmetry, no-envelope, with double-layered capsid, about 70 nm in diameter by electron microscopy. The genome segments of the virus were consisted of L1-3, M1-3 and S1-4, which were similar to that of avian reovirus (ARV). Compared to 68.2%, 69.3% - 70.1%, respectively. The system evolution analysis showed that S3 gene coding sigmaB protein was placed in different branch of MDRV and ARV, indicating that S3 gene of the virus was different from ARV and MDRV. The main clinical symptoms and lesions of ducklings caused by the virus were different from the diseases caused by MDRV and ARV. It was concluded that the virus was a Novel duck reovirus belonging to Orthoreovirus genus of the Reoviridae family.
