Whole-genome analysis of red sea bream iridovirus spread in 2021 in Japan provided epidemiological and viral traits insight.

Autor: Ishihara H; Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan., Harakawa S; Ehime Fisheries Research Center, Ehime Research Institute of Agriculture, Forestry and Fisheries, Ehime, Japan., Kawakami H; Ehime Fisheries Research Center, Ehime Research Institute of Agriculture, Forestry and Fisheries, Ehime, Japan., Yoshii K; Fisheries Research Division, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Oita, Japan., Murase N; Fisheries Research Division, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Oita, Japan., Yamada H; Fisheries Research Division, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Oita, Japan., Fukuda Y; Fisheries Research Division, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Oita, Japan., Nozaki R; Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan., Kawato S; Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan., Koiwai K; Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan., Hirono I; Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan., Kondo H; Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan.
Jazyk: angličtina
Zdroj: Journal of fish diseases [J Fish Dis] 2022 Oct; Vol. 45 (10), pp. 1593-1597. Date of Electronic Publication: 2022 Jul 21.
DOI: 10.1111/jfd.13690
Abstrakt: Red sea bream iridovirus (RSIV) is the pathogen that causes red sea bream iridoviral disease. It causes a huge loss to the Japanese aquaculture industry. In 2021, outbreaks of red sea bream iridovirus occurred in South Japan. This study analysed nine whole-genome sequences of RSIV isolated in Oita and Ehime Prefectures in 2021 using a short-read next-generation sequencer. Nine isolates had highly uniform sequences, and there was no variant depending on locations or host species. Phylogenetic analyses with other reported megalocytivirus isolates showed that RSIV isolated in 2021 was genetically different from RSIV previously isolated in Oita and Ehime Prefectures in 2017-2019. These results suggest that RSIV isolated in Oita and Ehime Prefectures in 2021 might spread from a common ancestor different from the recent one. Additionally, it was found that RSIV isolated in 2021 had sequence mutations on protein-coding sequences that may be involved in viral pathogenicity and infectivity.
(© 2022 John Wiley & Sons Ltd.)
Databáze: MEDLINE
Externí odkaz: