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KMID : 0545120170270071324
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Journal of Microbiology and Biotechnology
2017 Volume.27 No. 7 p.1324 ~ p.1330
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Genome Sequences of Spinach Deltapartitivirus 1, Spinach Amalgavirus 1, and Spinach Latent Virus Identified in Spinach Transcriptome
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Park Dong-Bin
Hahn Yoon-Soo
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Abstract
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Complete genome sequences of three new plant RNA viruses, Spinach deltapartitivirus 1 (SpDPV1), Spinach amalgavirus 1 (SpAV1), and Spinach latent virus (SpLV), were identified from a spinach (Spinacia oleracea) transcriptome dataset. The RNA-dependent RNA polymerases (RdRps) of SpDPV1, SpAV1, and SpLV showed 72%, 53%, and 93% amino acid sequence identities with the homologous RdRp of the most closely related virus, respectively, suggesting that SpDPV1 and SpAV1 were novel viruses. Sequence similarity and phylogenetic analyses revealed that SpDPV1 belonged to the genus Deltapartitivirus of the family Partitiviridae, SpAV1 to the genus Amalgavirus of the family Amalgaviridae, and SpLV to the genus Ilarvirus of the family Bromoviridae. Based on the demarcation criteria, SpDPV1 and SpAV1 are considered as novel species of the genera Deltapartitivirus and Amalgavirus, respectively. This is the first report of these two viruses from spinach.
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KEYWORD
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Spinach deltapartitivirus 1, Spinach amalgavirus 1, Spinach latent virus, spinach, transcriptome
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