Genetic positioning of aquabirnavirus isolates from cultured Japanese eel Anguilla japonica in Korea

Diseases of Aquatic Organisms

Wi-Sik Kim¹  Myung-Joo Oh¹ 

关键词: Aquabirnavirus;    Anguilla japonica;    VP2/NS junction region;    Phylogeny;   

DOI  :  10.3354/dao02724

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Aquabirnavirus is an epizootic virus in Japanese eel Anguilla japonica farms in Korea, although its origin is unclear. In the present study, nucleotide sequences of the VP2/NS junction region of 9 Korean aquabirnaviruses from cultured eel in various areas of Korea during 2000-2009 were analyzed to evaluate their genetic relatedness to worldwide isolates. The nucleotide sequences showed more than 94.2% identity among the 9 Korean eel isolates, 71.2% identity among 16 Korean isolates from freshwater and marine fish, and 71.1% identity among 25 worldwide isolates. All 9 isolates in this study were phylogenetically classified into genogroup II, including isolates from Denmark, Spain, Taiwan and Japan, and were discrete from salmonid and marine fish isolates (genogroup I and VII) in Korea. These results suggest that the Korean eel isolates have most likely been introduced from outside the country and not from coastal areas of Korea.

【 授权许可】

Unknown