Molecular characterization of a novel picobirnavirus in a chicken.
Arch Virol
; 163(12): 3455-3458, 2018 Dec.
Article
in En
| MEDLINE
| ID: mdl-30191372
ABSTRACT
Picobirnaviruses (PBVs) are bisegmented viruses with a wide geographical and host species distribution. The number of novel PBV sequences has been increasing with the help of the viral metagenomics. A novel picobirnavirus strain, pbv/CHK/M3841/HUN/2011, was identified by viral metagenomics; the complete segment 1 (MH327933) and 2 (MH327934) sequences were obtained by RT-PCR from a cloacal sample of a diseased broiler breeder pullet in Hungary. Although the conserved nucleotide (e.g., ribosome binding site) and amino acid motifs (e.g., ExxRxNxxxE, S-domain of the viral capsid and motifs in the RNA-dependent RNA polymerase) were identifiable in the chicken picobirnavirus genome, the putative segment 1 showed low (< 30%) amino acid sequence identity to the corresponding proteins of marmot and dromedary PBVs, while segment 2 showed higher (< 70%) amino acid sequence identity to a wolf PBV protein sequence. This is the first full-genome picobirnavirus sequence from a broiler breeder chicken, but the pathogenicity of this virus is still questionable.
Full text:
1
Database:
MEDLINE
Main subject:
Poultry Diseases
/
RNA Virus Infections
/
Chickens
/
Picobirnavirus
Limits:
Animals
Language:
En
Year:
2018
Type:
Article