A novel bipartite negative-stranded RNA mycovirus of the order Bunyavirales isolated from the phytopathogenic fungus Fusarium sibiricum

文献类型: 外文期刊

第一作者: Li, Pengfei

作者: Li, Pengfei;Bhattacharjee, Pallab;Wang, Shuangchao;Guo, Lihua;Gagkaeva, Tatiana

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期刊名称:ARCHIVES OF VIROLOGY ( 影响因子:2.7; 五年影响因子:2.4 )

ISSN: 0304-8608

年卷期: 2024 年 169 卷 1 期

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收录情况: SCI

摘要: A novel negative-stranded RNA mycovirus was isolated from the phytopathogenic fungus Fusarium sibiricum strain AH32. This virus, tentatively named "Fusarium sibiricum coguvirus 1" (FsCV1), has a bipartite genome consisting of two RNA segments (RNA1 and RNA2). The negative-sense RNA1 is 6711 nt in length, encoding the RNA-dependent RNA polymerase (RdRp, p251) in the viral complementary (vc) strand. The ambisense RNA2 (1204 nt long) encodes two proteins from overlapping genes: the nucleocapsid protein (NP, p38) in the vc strand and a protein of unknown function (UFP, p36) in the viral (v) strand. In contrast to other Bunyavirales members, in FsCV1, the two open reading frames are separated by a long AU-rich intergenic region (IR). Sequence comparisons and phylogenetic analysis based on RdRp and NP sequences demonstrated that FsCV1 is a novel bipartite negative-stranded RNA mycovirus of the genus Coguvirus, family Phenuiviridae, order Bunyavirales.

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