Viral RNA Genomes Identified from Marine Macroalgae and a Diatom

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  • Chiba Yuto
    Laboratory of Fungal Interaction and Molecular Biology (donated by IFO), Department of Life and Environmental Sciences, University of Tsukuba Faculty of Science, International College of Arts and Science, Yokohama City University
  • Tomaru Yuji
    Japan Fisheries Research and Education Agency, National Research Institute of Fisheries and Environment of the Inland Sea
  • Shimabukuro Hiromori
    Japan Fisheries Research and Education Agency, National Research Institute of Fisheries and Environment of the Inland Sea
  • Kimura Kei
    Faculty of Agriculture, Saga University
  • Hirai Miho
    Super-cutting-edge Grand and Advanced Research (SUGAR) Program, JAMSTEC
  • Takaki Yoshihiro
    Super-cutting-edge Grand and Advanced Research (SUGAR) Program, JAMSTEC
  • Hagiwara Daisuke
    Laboratory of Fungal Interaction and Molecular Biology (donated by IFO), Department of Life and Environmental Sciences, University of Tsukuba Microbiology Research Center for Sustainability (MiCS), University of Tsukuba
  • Nunoura Takuro
    Research Center for Bioscience and Nanoscience (CeBN), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
  • Urayama Syun-ichi
    Laboratory of Fungal Interaction and Molecular Biology (donated by IFO), Department of Life and Environmental Sciences, University of Tsukuba Microbiology Research Center for Sustainability (MiCS), University of Tsukuba Research Center for Bioscience and Nanoscience (CeBN), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

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Abstract

<p>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.</p>

Journal

  • Microbes and Environments

    Microbes and Environments 35 (3), n/a-, 2020

    Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles

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