한국어병학회지 (Journal of fish pathology)

  • 제34권2호
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  • Pages.141-147
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  • 2021
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  • 1226-0819(pISSN)
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  • 2233-5412(eISSN)
한국어병학회 (The Korean Society of Fish Pathology)
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수입 냉동새우에서 검출된 WSSV의 유전학적 근연관계 조사

Genetic relatedness of white spot syndrome virus (WSSV) from imported frozen shrimp

  • 최소원 (부경대학교 수산생명의학과) ;
  • 백은진 (부경대학교 수산생명의학과) ;
  • 최지영 (부경대학교 수산생명의학과) ;
  • 태원준 (부경대학교 수산생명의학과) ;
  • 김형순 (부경대학교 수산생명의학과) ;
  • 박우성 (부경대학교 수산생명의학과) ;
  • 김민재 (부경대학교 수산생명의학과) ;
  • 김광일 (부경대학교 수산생명의학과)
  • Choi, So Won (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Baek, Eun Jin (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Choi, Ji Yeong (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Tae, Won Jun (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Kim, Hyoung Soon (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Park, Woo Seong (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Kim, Min Jae (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Kim, Kwang Il (Department of Aquatic Life Medicine, Pukyong National University)
  • 투고 : 2021.10.20
  • 심사 : 2021.11.25
  • 발행 : 2021.12.31
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초록

본 연구에서는 주요 새우 생산 국가에서 2017년 7월부터 2020년 11월 사이 생산되어 국내로 수입된 냉동 새우(29개 그룹)를 대상으로 흰반점바이러스(WSSV), covert mortality nodavirus (CMNV) 및 decapod iridescent virus 1 (DIV-1)의 검출여부를 조사하였다. 각 바이러스에 대한 nested PCR 결과, WSSV는 9개 그룹(9/29)에서 검출되었으며 CMNV와 DIV-1은 검출되지 않았다. Nested PCR에서 WSSV 양성으로 확인된 시료를 대상으로 WSSV genome variable loci로 알려진 VR 14/15 region에 대해 참조 서열들과 삽입/결손(insertion and deletion) 서열 비교 및 근연관계를 분석하였다. WSSV 양성 시료 중 1개 시료(20-CH-1 isolate, 2020년 10월 중국 생산)에서만 VR 14/15에 대한 PCR amplicon이 생성되었으며 염기서열 분석 결과, 20-CH-1 isolate는 2005년 인도에서 보고된 WSSV-IN-05-01과 99.84%의 상동성을 보였다. 이는 과거 알려진 바와 같이 새우의 교역을 통한 국가 간 WSSV가 확산되었음을 뒷받침해주는 결과이다.

In this study, of the imported shrimps between 2017 and 2020, we investigated white spot syndrome virus (WSSV), covert mortality nodavirus (CMNV) and decapod iridescent virus 1 (DIV-1). Of the imported shrimps (a total of 29 groups), WSSV was detected as 31% (9/29) by nested PCR assay. And CMNV and DIV-1 were not identified in this study. To investigate the genetic relatedness of WSSV identified from imported shrimp, VR 14/15 region showed WSSV genomic variable loci was compared with reference isolates. Among the nine WSSV-positive samples, VR 14/15 region was amplified in only a sample (20-CH-1 isolate, imported from China in 2020). And the 20-CH-1 isolate showed 99.8% identity with WSSV-IN-05-01 which was reported in India in 2005, suggesting that those of WSSV have been spread from India to China. Furthermore, although the pathogenicity of WSSV identified from frozen shrimp was not evaluated, the international trade of diseased frozen shrimps could be led to the potential risk of virus transmission.

키워드

과제정보

이 논문은 2021년 해양수산부 재원으로 해양수산과학기술진흥원의 지원을 받아 수행된 연구임(수산생물 검역용 신속 및 정밀진단 기술 개발)

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