Here, we describe the molecular characterization of a novel mycovirus isolated from a phytopathogenic fungus, Alternaria dianthicola, which we have named “Alternaria dianthicola dsRNA virus 1” (AdRV1). AdRV1 has a genome of 3,014 bp that contains two non-overlapping open reading frames (ORF1 and 2) coding for a hypothetical protein and an RNA-dependent RNA polymerase (RdRp), respectively. Based on the RdRp, AdRV1 is phylogenetically related to some unclassified dsRNA mycoviruses, including Alternaria longipes dsRNA virus 1, and shows a distant relationship to members of the family Partitiviridae. To the best of our knowledge, this is the first report of mycovirus infecting A. dianthicola.

在这里，我们描述了从植物病原性真菌链格孢（Alternaria dianthicola）中分离出的新型分枝杆菌病毒的分子特征，我们将其命名为“ Alternaria dianthicola dsRNA virus 1”（AdRV1）。AdRV1具有3014 bp的基因组，其中包含两个不重叠的开放阅读框（ORF1和2），分别编码一种假设蛋白和一种RNA依赖性RNA聚合酶（RdRp）。基于RdRp，AdRV1与某些未分类的dsRNA真菌病毒在系统发育上相关，包括长链格孢菌dsRNA病毒1，并且与Partitiviridae家族成员关系遥远。据我们所知，这是分枝杆菌感染石竹的首次报道。