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http://dx.doi.org/10.7847/jfp.2012.25.3.143

Genotype distribution of infectious haematopoietic necrosis virus (IHNV) in Korea  

Cha, Seung Joo (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Jung, Yo Han (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Lee, Hyun Young (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Jung, Ji Yoon (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Cho, Hee Jung (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Park, Mi Seon (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Publication Information
Journal of fish pathology / v.25, no.3, 2012 , pp. 143-150 More about this Journal
Abstract
Infectious haematopoietic necrosis virus (IHNV) is an important fish pathogen that infects both wild and cultured salmonids. Since the first isolation of IHNV from rainbow trout and masu salmon in 1991, a series of IHN disease outbreak has been reported in Korea. In 2011, we isolated two IHNV isolates from rainbow trout cultured in Korea. The full open-reading frame (ORF) encoding the glycoprotein (G) of them were sequenced and the amino acid sequences were phylogenetically analyzed. Phylogenetic analysis of the G revealed that both IHNV isolates were grouped into an Asian genogroup containing Korean IHNV isolates and Japanese IHNV isolates. However, based on their sequence variation, they were divided into different subgroup. While one isolate was similar to other Korean isolates, the other isolate showed a high level of similarity with Japanese isolates, suggesting the possibility of influx of new IHNV strain into Korea.
Keywords
Infectious haematopoietic necrosis virus (IHNV); Glycoprotein (G); Genogroup; Phylogenetic analysis;
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