Maintenance of an old world betasatellite by a new world helper begomovirus and possible rapid adaptation of the betasatellite.

ABSTRACT: Begomoviruses (family Geminiviridae) cause major losses to crops throughout the tropical regions of the world. Begomoviruses originating from the New World (NW) and the Old World (OW) are genetically distinct. Whereas the majority of OW begomoviruses have monopartite genomes and whereas most of these associate with a class of symptom-modulating satellites (known as betasatellites), the genomes of NW begomoviruses are exclusively bipartite and do not associate with satellites. Here, we show for the first time that a betasatellite (cotton leaf curl Multan betasatellite [CLCuMuB]) associated with a serious disease of cotton across southern Asia is capable of interacting with a NW begomovirus. In the presence of CLCuMuB, the symptoms of the NW cabbage leaf curl virus (CbLCuV) are enhanced in N

SUBMITTER: Nawaz-ul-Rehman MS 

PROVIDER: S-EPMC2738271 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature