| genetic variability of begomoviruses associated with cotton leaf curl disease originating from india. | cotton leaf curl disease (clcud) causing viruses belong to the begomovirus genus of the family geminiviridae. most begomoviruses are bipartite with two molecules of circular single stranded dna (a and b) encapsidated in icosahedral geminate particles. however, the begomoviruses associated with clcud have dna-beta instead of dna-b. in this communication we report the complete genomic sequence of dna-a component of two clcud-causing begomoviruses, cotton leaf curl kokhran virus-dabawali (clcukv-da ... | 2004 | 15669112 |
| complete nucleotide sequences of cotton leaf curl rajasthan virus and its associated dna beta molecule infecting tomato. | | 2007 | 17703290 |
| diverse and recombinant dna betasatellites are associated with a begomovirus disease complex of digera arvensis, a weed host. | weeds are considered as a source of new viruses and reservoirs of economically important viruses but are often neglected during diversity studies. here, we report the complete nucleotide sequences and phylogenetic analyses of the components of a begomovirus disease complex associated with yellow vein disease of digera arvensis, a common weed. the begomovirus associated with the disease showed 98% nucleotide sequence identity with cotton leaf curl rajasthan virus. two species of betasatellite wer ... | 2009 | 19428755 |
| maintenance of an old world betasatellite by a new world helper begomovirus and possible rapid adaptation of the betasatellite. | 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 t ... | 2009 | 19570867 |
| post-transcriptional gene silencing suppressor activity of two non-pathogenic alphasatellites associated with a begomovirus. | alphasatellites and betasatellites are begomovirus-associated single-stranded circular dna molecules. two distinct alphasatellites, gossypium darwinii symptomless alphasatellite and gossypium mustelinium symptomless alphasatellite, were previously isolated from gossypium davidsonii and g.mustelinium. here we show that the replication-associated proteins (rep: a rolling-circle replication initiator protein) encoded by these alphasatellites interact with the rep and c4 proteins encoded by their he ... | 2010 | 20598726 |
| rnai-mediated resistance against cotton leaf curl disease in elite indian cotton (gossypium hirsutum) cultivar narasimha. | cotton leaf curl disease (clcud) is caused by several distinct begomovirus species in association with disease-specific betasatellite essential for induction of disease symptoms. clcud is a serious threat for the cultivation of cotton (gossypium sp.) and several species in the family malvaceae. in this study, rnai-based approach was applied to generate transgenic cotton (gossypium hirsutum) plants resistant to cotton leaf curl rajasthan virus (clcurv). an intron hairpin (ihp) rnai construct capa ... | 2016 | 27028623 |
| a bemisia tabaci midgut protein interacts with begomoviruses and plays a role in virus transmission. | begomoviruses are a major group of plant viruses, transmitted exclusively by bemisia tabaci (gennadius) in a persistent circulative non-propagative manner. the information regarding molecular and cellular basis underlying begomovirus - whitefly interaction is very scarce. evidences have suggested that the insect gut possesses some crucial protein receptors that allow specific entry of virus into the insect haemolymph. we have performed yeast two hybrid gut cdna expression library screening again ... | 2016 | 26488331 |