Complete genome sequence and phylogenetic analysis of a goose astrovirus isolate in China.
Braz J Microbiol
; 54(1): 427-434, 2023 Mar.
Article
em En
| MEDLINE
| ID: mdl-36327040
Astroviruses are considered the cause of gastroenteritis in humans and animals. Studies in recent years show avian astroviruses are also associated with duckling hepatitis, gosling gout, and chicken nephritis. In this study, a GAstV strain, designated as JS2019/China, was detected in dead goslings from a commercial goose farm in Jiangsu province of China. Viral strain was proliferated in goose embryos and sequence analysis showed the isolated strain had a classical structure arrangement and a series of conserved regions compared with other GAstVs. Sequence comparison and phylogenetic analysis of whole genome and ORF2 revealed that JS2019/China belongs to the GAstV-1 group, which consists of most of the GAstV strains. Amino acid analysis indicated that some mutants might have an impact on viral protease capacity, such as V505I and K736E of ORF1a and T107I, F342S, and S606P of ORF2. Taken together, a novel GAstV strain was isolated and genomic analysis and protein polymorphism analysis indicated that some amino acid mutants might affect the viral virulence.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças das Aves Domésticas
/
Infecções por Astroviridae
/
Avastrovirus
Limite:
Animals
/
Humans
País/Região como assunto:
Asia
Idioma:
En
Revista:
Braz J Microbiol
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
China
País de publicação:
Brasil