Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Rapid and Sensitive Detection of Infectious Pancreatic Necrosis Virus (IPNV) by Revers Transcription-Polymerase Chain Reaction (RT-PCR)

PT-PCR 법에 의한 Infectious Pancreatic Necrosis Virus의 조기진단

  • Published : 1997.05.01
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Abstract

Infectious pancreatic necrosis virus (IPNY) is an economically important fish pathogen since it causes the high-mortality disease in early stage of hatchery-reared fishes. In order to develop a rapid, sensitive and highly specific detection method for IPNV, reverse transcription-polymerase chain reaction (RT-PCR) was carried out using the oligonucleotide primers selected from the sequence of VP2, a major capsid polypertide of IPNV. As little as 40ng of purified IPNV dsRNA was detected by RT-PCR amplification, but no amplification products were obtained when nucleic acid genomes from other fish pathogens such as IHNV were used as RT-PCR templates. in situ RT-PCR methods are useful for the rapid and sensitive identification of IPNV.

Infectious pancreatic necrosis virus (IPNV)는 치어에 감염되어 치명적인 질병을 유발하는, 양식산업에 있어 중요한 어류 병원체이다. 본 연구에서는 IPNV를 신속, 정확하게 진단하는 방법을 개발하고자 IPNV의 항원성 단백질인 VP2 유전자 부분에서 선택한 primers를 이용하여 역전사-중합효소연쇄반응법(Reverse Transcription-Polymerase Chain Reaction, RT-PCR)을 실시하였다. RT-PCR 증폭법으로 순수분리도니 IPNV dsRNA 40 ng 정도의 적은 양도 확인 할 수 있었으며, IHNV와 같은 다른 어류 병원체의 게놈을 RT-PCR templates로 사용하였을 경우는 어떠한 PCR 산물도 검출되지 않는 특이성을 보였다. 특히 유전자의 분리없이 조직 그 자체를 대상으로 RT-PCR을 행하는 in situ RT-PCR 방법으로 IPNV가 감염된 넙치 (Paralichthy olivaceus) 치어의 조직에서 IPNV 감염을 신속하게 확인할 수 있었다. 따라서 RT-PCR 및 in situ RT-PCR 방법은 IPNV를 신속, 정확하게 진단하는데 활용될 수 있을 것으로 생각된다.

Keywords

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