| molecular diversity of cotton leaf curl gezira virus isolates and their satellite dnas associated with okra leaf curl disease in burkina faso. | okra leaf curl disease (olcd) is a major constraint on okra (abelmoschus esculentus) production and is widespread in africa. using a large number of samples representative of the major growing regions in burkina faso (bf), we show that the disease is associated with a monopartite begomovirus and satellite dna complexes. twenty-three complete genomic sequences of cotton leaf curl gezira virus (clcugv) isolates associated with olcd, sharing 95 to 99% nucleotide identity, were cloned and sequenced. ... | 2010 | 20178575 |
| a severe symptom phenotype in tomato in mali is caused by a reassortant between a novel recombinant begomovirus (tomato yellow leaf curl mali virus) and a betasatellite. | tomato production in west africa has been severely affected by begomovirus diseases, including yellow leaf curl and a severe symptom phenotype, characterized by extremely stunted and distorted growth and small deformed leaves. here, a novel recombinant begomovirus from mali, tomato yellow leaf curl mali virus (tylcmlv), is described that, alone, causes tomato yellow leaf curl disease or, in combination with a betasatellite, causes the severe symptom phenotype. tylcmlv is an old world monopartite ... | 2009 | 19400843 |
| roles and interactions of begomoviruses and satellite dnas associated with okra leaf curl disease in mali, west africa. | okra leaf curl disease (olcd) is a major constraint on okra (abelmoschus esculentus) production in west africa. two monopartite begomoviruses (okra virus-1 and okra virus-2), a betasatellite and a dna1 satellite are associated with olcd in mali. okra virus-1 is an isolate of okra yellow crinkle virus (oycrv), okra virus-2 is a recombinant isolate of cotton leaf curl gezira virus (clcugv) and the betasatellite is a variant of cotton leaf curl gezira betasatellite (clcugb). cloned dna of oycrv and ... | 2009 | 19264648 |
| complete nucleotide sequences of okra isolates of cotton leaf curl gezira virus and their associated dna-beta from niger. | okra (abelmoschus esculentus) is a major crop in niger. in the fall of 2007, okra leaf curl disease was observed in niger and the begomovirus and dna-beta satellite were found associated with the disease. the complete nucleotide sequences of dna-a (fj469626 and fj469627) and associated dna-beta satellites (fj469628 and fj469629) were determined from two samples. this is the first report of molecular characterization of okra-infecting begomovirus and their associated dna-beta from niger. the bego ... | 2009 | 19156351 |
| ageratum conyzoides: a host to a unique begomovirus disease complex in cameroon. | ageratum conyzoides (goat weed) is a widespread uncultivated species in cameroon that exhibits leaf curl disease (lcd) symptoms suggestive of begomovirus infection. in asia, different begomovirus-satellite complexes have been identified in a. conyzoides. the objective of this study was to determine the identity of the suspect begomoviruses and their associated satellites in a. conyzoides in cameroon. the results indicated that all three symptomatic a. conyzoides plants examined were infected wit ... | 2011 | 22001569 |
| the merging of two dynasties-identification of an african cotton leaf curl disease-associated begomovirus with cotton in pakistan. | cotton leaf curl disease (clcud) is a severe disease of cotton that occurs in africa and pakistan/northwestern india. the disease is caused by begomoviruses in association with specific betasatellites that differ between africa and asia. during survey of symptomatic cotton in sindh (southern pakistan) cotton leaf curl gezira virus (clcugv), the begomovirus associated with clcud in africa, was identified. however, the cognate african betasatellite (cotton leaf curl gezira betasatellite) was not f ... | 2011 | 21637815 |