Univ. Bordeaux, INRAE, UMR BFP, 33140, Villenave d'Ornon, France.
CIRAD, UMR PHIM, 34090, Montpellier, France.
Arch Virol. 2021 Sep;166(9):2573-2578. doi: 10.1007/s00705-021-05135-6. Epub 2021 Jun 20.
A novel geminivirus was identified in France and Spain in asymptomatic plants of white clover (Trifolium repens) and shrub medick (Medicago arborea). Its genome has the hallmarks of a capulavirus, and its relationship to other capulaviruses was confirmed by phylogenetic analysis. White clover isolates formed a tight cluster in the phylogenetic tree, while shrub medick isolates formed two distinct, more divergent groups with sequence identity values close to the species cutoff. These three groups have likely participated in recombination events involving alfalfa leaf curl virus and French bean severe leaf curl virus. The name "trifolium virus 1" (TrV1) is proposed for this new Capulavirus. Three TrV1 genotypes (TrV1-A, TrV1-B, and TrV1-C) were clearly distinguished.
在法国和西班牙的无症状白三叶草（Trifolium repens）和灌木车轴草（Medicago arborea）植株中鉴定出一种新型双生病毒。其基因组具有帽状病毒的特征，通过系统发育分析证实了其与其他帽状病毒的关系。白三叶草分离物在系统发育树中形成一个紧密的聚类，而灌木车轴草分离物形成两个不同的、更具差异性的群组，其序列同一性值接近物种界限。这三个群组可能参与了涉及紫花苜蓿曲叶病毒和菜豆严重卷曲病毒的重组事件。提议将这种新的帽状病毒命名为三叶草病毒 1（TrV1）。明确区分了三种 TrV1 基因型（TrV1-A、TrV1-B 和 TrV1-C）。
