Spinach is a vegetable crop which is widely grown over a large area especially in Punjab province of Pakistan. Leaf curling and enations on spinach plant collected shown to be associated with the begomovirus Pedilanthus leaf curl virus (PeLCV) and Shahdadpur strain of Cotton leaf curl Multan betasatellite (CLCuMB^Sha). Defective molecules of half and quarter size derived from monopartite begomoviruses are usually generated by the deletion of virion-sense sequences. Characterization of defective molecules of PeLCV from spinach revealed that the molecules of half the size are derived from the deletion of complementary-sense genes while quarter size molecule appears to have evolved by further deletion. This is the first report of the begomovirus-betasatellite complex on spinach and unusual defective molecules derived from deletion of complementary-sense genes in Pakistan.

中文翻译：

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Begomovirus-Betasatellite 复合体的表征，在菠菜 (Spinacia oleracea L.) 中产生缺陷分子，菠菜是巴基斯坦 Begomovirus 和 Betasatellite 复合体的新宿主。


菠菜是一种蔬菜作物，广泛种植，特别是在巴基斯坦旁遮普省。收集的菠菜植株上的卷叶和发生显示与 begomovirus Pedilanthus 卷叶病毒(PeLCV) 和棉花卷叶木尔坦 beta 卫星 (CLCuMB ^Sha ) 的 Shahdadpur 菌株相关。来自单部分贝戈莫病毒的一半和四分之一大小的缺陷分子通常是通过删除病毒颗粒感应序列而产生的。对菠菜 PeLCV 缺陷分子的表征表明，一半大小的分子源自互补正义基因的删除，而四分之一大小的分子似乎是通过进一步删除而进化的。这是巴基斯坦首次报道菠菜上的贝戈莫病毒-β卫星复合物以及源自互补正义基因缺失的异常缺陷分子。