A novel narnavirus from the plant-pathogenic fungus Magnaporthe oryzae
Autor: | An Hongliu, Songbai Zhang, Simin Shuai, Shouguo Fang, Xuan Zhou, Jia Zhou, Yuan Lin, Qingchao Deng, Rendi Zhou |
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Rok vydání: | 2019 |
Předmět: |
food.ingredient
Sequence analysis viruses Sequence Homology Genome Viral Fungal Viruses Genome 03 medical and health sciences chemistry.chemical_compound Open Reading Frames food Virology RNA polymerase Narnavirus RNA Viruses Phylogeny 030304 developmental biology Genetics 0303 health sciences Alternaria tenuissima biology 030306 microbiology RNA Oryza General Medicine Sequence Analysis DNA biology.organism_classification Open reading frame Magnaporthe chemistry Mycovirus RNA Viral |
Zdroj: | Archives of virology. 165(5) |
ISSN: | 1432-8798 |
Popis: | A novel mycovirus with the proposed name "Magnaporthe oryzae narnavirus virus 1" (MoNV1), was described in the rice blast fungus Magnaporthe oryzae. The virus has a single-stranded (+ss) RNA genome of 2452 nucleotides, contains a single open reading frame (ORF) predicted to encode an RNA-dependent RNA polymerase (RDRP), and is closely related to some viruses of the genus Narnavirus, family Narnaviridae, including Aspergillus fumigatus narnavirus 1 (AfNV1), Neofusicoccum parvum narnavirus 2 (NpNV2) and Alternaria tenuissima narnavirus 1 (AtNV2). Genome sequence comparisons and phylogenetic analysis suggested that MoNV1 is a new member of the genus Narnavirus. The RDRPs of MoNV1 and some closely related narnaviruses do not contain a typical metal-binding "GDD" motif and catalytic site. Further studies are needed to investigate the replication mechanism of these viruses. |
Databáze: | OpenAIRE |
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