Viral RNA Genomes Identified from Marine Macroalgae and a Diatom

Overview

Journal Microbes Environ

Specialty Environmental Health

Date 2020 Jun 20

PMID 32554943

Citations 14

Authors

Yuto Chiba

Yuji Tomaru

Hiromori Shimabukuro

Kei Kimura

Miho Hirai

Yoshihiro Takaki

Daisuke Hagiwara

Takuro Nunoura

Syun-Ichi Urayama

Affiliations

Soon will be listed here.

Abstract

Protists provide insights into the diversity and function of RNA viruses in marine systems. Among them, marine macroalgae are good targets for RNA virome analyses because they have a sufficient biomass in nature. However, RNA viruses in macroalgae have not yet been examined in detail, and only partial genome sequences have been reported for the majority of RNA viruses. Therefore, to obtain further insights into the distribution and diversity of RNA viruses associated with marine protists, we herein examined RNA viruses in macroalgae and a diatom. We report the putative complete genome sequences of six novel RNA viruses from two marine macroalgae and one diatom holobiont. Four viruses were not classified into established viral genera or families. Furthermore, a virus classified into Totiviridae showed a genome structure that has not yet been reported in this family. These results suggest that a number of distinct RNA viruses are widespread in a broad range of protists.

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