Phylogenetic analysis of betanodaviruses isolated from cultured fish in Korea

Diseases of Aquatic Organisms

Seung Ju Cha Jeong Wan Do Nam Sil Lee Eun Jeong An Yi Cheong Kim Jin Woo Kim Jeong Woo Park¹ 

关键词: Fish nodavirus;    Coat protein;    Phylogenetic analysis;   

DOI  :  10.3354/dao01840

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

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.

【 授权许可】

Unknown