Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
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Phylogenetic analysis of infectious hematopoietic necrosis virus (IHNV) isolated from cultured rainbow trout Oncorhynchus mykiss in Korea

국내 양식 무지개송어에서 분리한 IHNV glycoprotein의 유전자 분석

  • Kim, Hyoung-Jun (Incheon Branch Office, National Fisheries Products Inspection Service)
  • 김형준 (국립수산물품질검사원 인천지원)
  • Received : 2010.02.24
  • Accepted : 2010.04.26
  • Published : 2010.04.30
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Abstract

Infectious hematopoietic necrosis virus (IHNV) is the causative agent of IHN, one of the most serious viral diseases of salmonid fish. In this study, glycoprotein (G) gene nucleotide sequence of isolated IHNV RtWanju09 from Jeollabuk-do province was analyzed to evaluate their genetic relatedness to worldwide isolates. As the result, it was revealed that IHNV RtWanju09 isolate belongs to JRt Shizuoka lineage with IHNV RtPy91 and RtJe00. The genetic diversity of G gene between RtWanju09 isolate and RtPy91 isolate from Gangwon-do province was 1.77% and maximum nucleotide diversity among the JRt Shizuoka lineage in Korea was 3.03% during the past 20 years, supporting that the continuous evolution has been occurred among JRt Shizuoka isolates. It was believed that IHNV RtWanju09 isolate has been introduced by the movement of contaminated eggs with IHNV from Gangwon-do to Jeollabuk-do by the reason that the eyed eggs in Jeollabuk-do province used to be obtained from Gangwon-do province. In this study, the domestic transfer of IHNV was firstly investigated by the transfer history of eggs and the phylogenetic analysis using IHNV glycoprotein gene sequence.

무지개 송어 발안란의 이동 이력과 IHNV G gene 염기서열의 계통학적 분석에 의해 IHNV의 국내 이동에 대해서 처음으로 조사되었다. IHNV RtWanju09 분리주는 IHNV RtPy91과 RtJe00의 JRt Shizuoka lineage에 속하는 것으로 나타났으며, 강원도에서 분리된 IHNV RtPy91과 RtWanju09 사이의 G gene의 유전적 차이는 1.77%였고, 약 20년간 우리나라의 JRt Shizuoka lineage에 속하는 한국 분리주들은 최대 3.03%의 유전적 차이를 나타내 계속적으로 바이러스가 진화하는 것을 알 수 있었다. 또한 전라북도 지역에서 분리된 IHNV RtWanju09 분리주는 IHNV가 오염된 강원도 지역산 발안란이 전라북도에 전파되었을 것으로 사료된다.

Keywords

References

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