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Diseases of Aquatic Organisms

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DAO 77:181-189 (2007)  -  DOI:

Phylogenetic analysis of betanodaviruses isolated from cultured fish in Korea

Seung Ju Cha1,2, Jeong Wan Do1, Nam Sil Lee1, Eun Jeong An2, Yi Cheong Kim1, Jin Woo Kim1, Jeong Woo Park2,*

1Pathology Division, National Fisheries Research & Development Institute, Kijang, Pusan 619-902, South Korea
2Department of Biological Sciences, University of Ulsan, Ulsan 680-749, South Korea
*Corresponding author. Email:

ABSTRACT: Since the publication of the first report on fish nodaviruses in Korea in 1998 (Sohn et al. 1998; J Fish Pathol 11:97–104), fish nodaviruses have caused widespread epizootic events among various fish species in Korea. However, the genotypes of fish nodaviruses in Korea have not yet been determined due to a lack of information about their nucleotide sequences. In this study, we isolated 5 fish nodaviruses from 4 fish species cultured in 4 different regions in Korea: rock bream Oplegnathus fasciatus, Japanese flounder Paralichthys olivaceus, sevenband grouper Epinephelus septemfasciatus, and grey mullet Mugil cephalus. The full open-reading frame (ORF) encoding the coat protein (1017 nt) was sequenced from each of the 5 fish nodaviruses and the nucleotide sequences were phylogenetically analyzed. Results showed that even though their sequences were not identical, all 5 Korean isolates were clustered in the RGNNV genotype. This is the first report on the phylogenetic analysis of fish nodaviruses from cultured fish in Korea.

KEY WORDS: Fish nodavirus · Coat protein · Phylogenetic analysis

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Cite this article as: Cha SJ, Do JW, Lee NS, An EJ, Kim YC, Kim JW, Park JW (2007) Phylogenetic analysis of betanodaviruses isolated from cultured fish in Korea. Dis Aquat Org 77:181-189.

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