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Detection and Genetic Differentiation of Megalocytiviruses in Shellfish, via High-Resolution Melting (HRM) Analysis

HRM 분석법을 이용한 패류 내 Megalocytiviruses의 검출과 유전적 분석

  • Kim, Kwang Il (Aquatic Life Disease Control Division, National Fisheries Research & Development Institute) ;
  • Jin, Ji Woong (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Kim, Young Chul (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Jeong, Hyun Do (Department of Aquatic Life Medicine, Pukyong National University)
  • 김광일 (국립수산과학원 수산생물방역과) ;
  • 진지웅 (부경대학교 수산생명의학과) ;
  • 김영철 (부경대학교 수산생명의학과) ;
  • 정현도 (부경대학교 수산생명의학과)
  • Received : 2014.04.21
  • Accepted : 2014.06.16
  • Published : 2014.06.30

Abstract

Viruses in the genus Megalocytivirus have been subdivided into four subgroups. Among these subgroups 2 and 4, represented by the red sea bream iridovirus (RBIV) and the olive flounder iridovirus (FLIV), respectively, are non-exotic. subgroups 1 and 3, represented by the red sea bream iridovirus (RSIV) and the infectious spleen and kidney necrosis virus (ISKNV), respectively, have not been detected in Korea and are known as exotic. Shellfish are filter-feeders, and can thus filter and accumulate Megalocytivirus in their digestive glands, allowing us to track viral contamination in surrounding aquatic environment. In this study, we developed a high-resolution melting (HRM) analysis to differentiate among subgroups of Megalocytivirus accumulated in shellfish, and confirmed the convenience and efficiency of this method. More than two subgroups of Megalocytivirus were found in the digestive gland of a single shellfish. We classified all Megalocytivirus viruses from shellfish in Korea into subgroups 2 and 4, although proportions of subgroups were different among regions. Compared to nucleotide sequencing analysis, HRM analysis is a simple and rapid method for differentiating of Megalocytivirus subgroups.

Keywords

References

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  1. vol.41, pp.8, 2018, https://doi.org/10.1111/jfd.12815