Key result
Phylogenetic analysis of the S2 gene classified Japanese avian infectious bronchitis virus isolates into six groups, revealing discrepancies with S1 gene classification that suggest genetic recombination.
Phylogenetic analysis of the S2 gene of avian infectious bronchitis viruses in Japan suggests that genetic recombination occurs between different genetic groups in poultry.
To understand the genetic diversity of the S2 gene of infectious bronchitis viruses (IBV) isolated in Japan, we determined the nucleotide sequences of these IBVs using the reverse transcriptase polymerase chain reaction method coupled with direct sequencing. IBV isolated in Japan were classified into six different groups by phylogenetic analysis based on the S2 gene. However, the classification based on the S2 gene of IBV isolated in Japan was different for some of the strains from those obtained with our previous analysis of the S1 gene. This suggested that genetic recombination between the virus strains classified into different genetic groups had occurred in poultry, and that recombinant viruses might be epidemic in Japan.
No takes yet. Share an insight, caveat, or question.
Mase et al. (2009) studied Avian infectious bronchitis virus (IBV) (n=45). S2 glycoprotein gene sequencing and phylogenetic analysis vs. S1 glycoprotein gene classification was evaluated on Phylogenetic classification based on S2 gene. Phylogenetic analysis of the S2 gene classified Japanese avian infectious bronchitis virus isolates into six groups, revealing discrepancies with S1 gene classification that suggest genetic recombination.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: