文献类型： 外文期刊
作者： Liu, Shengxue;Zhang, Hailong;Zhao, Chengjin;Guo, Lihua
作者机构：
期刊名称： ARCHIVES OF VIROLOGY
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年卷期：
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收录情况： SCI
摘要： The complete nucleotide sequence of Alternaria longipes dsRNA virus 1 (AlRV1), a novel double-stranded RNA (dsRNA) mycovirus, was determined and analyzed. AlRV1-HN28 contains a single dsRNA genome segment 3415 base pairs in length (excluding the 3' poly(A) tail) and was predicted to contain two discontiguous open reading frames (ORFs, ORF A and ORF B). The 5'-proximal ORF A (1182 nt) potentially encodes a protein of 394 amino acids (aa) with a predicted molecular mass of 43 kDa; this protein showed no significant similarities to any other sequences in any of the NCBI protein databases. The 3'-proximal ORF B (1737 nt) encodes a protein of 579 aa with a predicted molecular mass of 65 kDa; this protein sequence shares similarities with the conserved domains of RNA-dependent RNA polymerases of other mycoviruses. Phylogenetic analysis indicated that AlRV1-HN28 was closely related to four other unclassified viruses, which suggests that the AlRV1-HN28 isolated from Alternaria longipes may belong to a new family of dsRNA mycoviruses. This is the first report of the full-length nucleotide sequence of a mycovirus that infects Alternaria longipes.
分类号： R37
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