Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-5-14
pubmed:databankReference
pubmed:abstractText
Two Newcastle disease viruses (NDV), designated QG/Hebei/07 and XD/Shandong/08, were isolated from infected chicken flocks in China in 2007 and 2008, respectively. The results of phylogenetic and recombination analyses on complete NDV genome sequences (excluding terminal segments) show that the QG/Hebei/07 isolate had evidence of recombination in the M and F genes, and recombination in the XD/Shandong/08 isolate in the F, L genes and the non-coding region between the HN and L genes. These two naturally-occurring recombinants we found to be descended from at least three putative parents from vaccine and circulating virus lineages. Moreover, we found that evidence that homologous recombination also occurred between NDV viruses of chicken and swine lineages, while the major putative parent is likely to have been derived from the chicken avirulent vaccine lineage. This study suggests that homologous recombination can occur in all coding and non-coding regions of the NDV genome and a live vaccine strain is capable of recombination with circulating viruses resulting in significant genetic change. The potential role of swine-origin viruses in the evolution of virulent NDV warrants further investigation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1872-7492
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
151
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
45-53
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Isolation and analysis of two naturally-occurring multi-recombination Newcastle disease viruses in China.
pubmed:affiliation
Department of Preventive Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't