Abstract
The complete nucleotide sequence of a newly discovered virus infecting Quercus aliena Blume, tentatively named "quercus leafroll virus" (QLRV), was determined through high-throughput and Sanger sequencing. The sequence comprises 3,940 nucleotides, has five open reading frames, and has a typical pelarspovirus genome organization, with neither 3' polyadenylation nor a 5' cap. The proteins encoded by QLRV share 17.9 to 44.2% amino acid sequence identity with known pelarspovirus proteins. The highest amino acid sequence identity values for the RNA-dependent RNA polymerase (RdRp) and coat protein were 67.5% and 55.2%, respectively, which are below the current thresholds for pelarspovirus species demarcation. On the basis of these results, we propose classifying QLRV as a new member of the genus Pelarspovirus, family Tombusviridae.
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