Korean Journal of Veterinary Service (한국동물위생학회지)

The Korean Society of Veterinary Service (한국동물위생학회)
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Genetic characterization and phylogenetic analysis of infectious bronchitis virus isolated in Jeonbuk

전북지역 전염성기관지염 바이러스의 유전적 특성

  • Chu, Keum-Suk (Jeollabuk-do Institute of Livestock & Veterinary Research) ;
  • Kim, Ji-Hyun (Jeollabuk-do Institute of Livestock & Veterinary Research) ;
  • Lee, Jeong-Won (Jeollabuk-do Institute of Livestock & Veterinary Research) ;
  • Choi, Kwang-Lim (Jeollabuk-do Institute of Livestock & Veterinary Research)
  • 추금숙 (전라북도축산위생연구소) ;
  • 김지현 (전라북도축산위생연구소) ;
  • 이정원 (전라북도축산위생연구소) ;
  • 최광림 (전라북도축산위생연구소)
  • Received : 2015.02.11
  • Accepted : 2015.03.23
  • Published : 2015.03.30
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Abstract

Infectious bronchitis virus (IBV) causes an acute and highly contagious viral disease of chicken that is great economic losses to the poultry industry worldwide. Among the IBV structural proteins, the high rate spike glycoprotein S1 gene mutation and antigenic variant strains have been reported in many countries. During the years 2012~2014, 10 IBV strains were isolated from infected chicken farms distributed in provinces of Jeonbuk. Analysis of the S1 gene sequences amplified from 10 isolated strains with QX strains showed nucleotide homologies ranging from 96.5 to 95.4%. Phylogenetic analysis revealed that all strains were clustered into QX-like groups. This study suggests that QX-like IBVs are circulating in commercial chicken farms in Jeonbuk. Therefore, the continuing survellance is significantly important for prevention and control of BIV infection.

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References

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