Phylogenetic analysis and genetic characterization of chicken anemia virus isolates from Cambodia.
Poult Sci
; 92(10): 2681-6, 2013 Oct.
Article
em En
| MEDLINE
| ID: mdl-24046415
ABSTRACT
Three chicken anemia viruses (CAV) were detected by PCR during screening of field samples from village chickens collected in Cambodia in 2011/2012. Nearly full-length VP1 viral structural protein genes (nt 1-1,293) from the 3 CAV were sequenced and characterized. Phylogenetic analysis revealed that all 3 of the Cambodian CAV were clustered with CAV strains belonging to genotype II and were most closely related to CAV strains from Guangdong province, China. On the amino acid level, major substitutions were observed at 12 residues in the VP1 protein (positions 22, 75, 97, 125, 139, 144, 254, 287, 290, 370, 376, and 413) when compared with published reference CAV strains. In motifs associated with virulence, all Cambodian CAV had virulence-associated motifs composed of 75I, 89T, 125I, 139Q, 141Q, 144Q, and 394Q, which are commonly found in highly virulent genotype II viruses and some genotype III viruses. This is the first report of CAV isolated from village chickens in Southeast Asia as well as Cambodia.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
DNA Viral
/
Proteínas Estruturais Virais
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Galinhas
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Vírus da Anemia da Galinha
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Genótipo
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Revista:
Poult Sci
Ano de publicação:
2013
Tipo de documento:
Article