Identification of viruses belonging to the family Partitiviridae from plant transcriptomes
Jo, Y.; Cho, W. K.
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Viruses in the family Partitiviridae consist of non-enveloped viruses with bisegmented double-stranded RNA genomes. Viruses in this family have been identified from plants and fungi. In this study, we identified several viruses belonging to the family Partitiviridae using plant transcriptomes. From 11 different plant species, we identified a total of 74 RNA segments representing 23 partitiviruses. Of 74 RNA segments, 28 RNA segments encode RNA-dependent RNA polymerases (RdRp) while 46 RNA segments encode coat proteins (CPs). According to ICTV demarcation for the family Partitiviridae, 25 RNAs encoding RdRp and 41 RNAs encoding CP were novel RNA segments. In addition, we identified eight RNA segments (three for RdRp and five for CP) belonging to the known partitivruses. Taken together, this study provides the largest number of partitiviruses from plant transcriptomes in a single study.
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