| 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 |
| 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 |