Sequence analysis of the gene coding for the S1 glycoprotein of infectious bronchitis virus (IBV) strains from New Zealand.

Virus Genes
Robin McFarlane, Ramneek Verma

Abstract

Four new infectious bronchitis virus (IBV) strains (T6, K32, K43, and K87) were isolated from clinically infected chickens in New Zealand. These strains were compared with four strains (A, B, C, and D), which had circulated 25 years previously, by sequencing the gene coding for the S1 subunit of the spike glycoprotein. Analysis of the nucleotide and deduced amino acid sequences revealed that the eight strains from New Zealand are genetically related and share greater than 82.8% nucleotide and 79% amino acid homology within the S1 region. Strains T6, K43, and K87 were more than 99% homologous to previously described strains C and D. A fourth new strain (K32) was most closely related to the previously described B strain. Phylogenetic analysis of strains revealed that New Zealand strains were more closely related to Australian than European or North American strains. The New Zealand A strain shared 99.5% nucleotide and 98.7% amino acid homology with the Australian Vic S strain. Deduced amino acid sequence of the S1 glycoprotein indicated differences between strains that were, in general, consistent with virus neutralization patterns.

References

Mar 1, 1989·Virology·J G KustersB A van der Zeijst
Dec 1, 1988·The Journal of General Virology·W SpaanM C Horzinek
Mar 1, 1981·The Journal of General Virology·D Cavanagh

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Citations

Feb 18, 2016·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Viviana ValastroIsabella Monne
May 6, 2009·Veterinary Microbiology·Maged H GomaaJohn R Barta
Aug 5, 2017·Animal Health Research Reviews·Faruku BandeVenugopal Nair
Jun 30, 2011·Avian Pathology : Journal of the W.V.P.A·J J Sjaak de WitHarold M J F van der Heijden

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