| post-transcriptional gene silencing in controlling viruses of the tomato yellow leaf curl virus complex. | tomato yellow leaf curl disease (tylcd) is caused by a group of geminiviruses that belong to the tomato yellow leaf curl virus (tylcv) complex and are transmitted by the whitefly (bemisia tabaci genn.). the disease causes great yield losses in many countries throughout the mediterranean region and the middle east. in this study, the efficacy of post-transcriptional gene silencing (ptgs) to control the disease caused by tylcv complex was investigated. non-coding conserved regions from the genome ... | 2006 | 16862387 |
| evidence for a founder effect after introduction of tomato yellow leaf curl virus-mild in an insular environment. | evolution of tomato yellow leaf curl virus-mild (tylcv-mld[re]) (family geminiviridae, genus begomovirus) was monitored in la réunion island from its first upsurge in 1997 until 2004. two genome fragments, one comprising partial c4 and c1 open reading frames (orfs), and the other comprising part of the v1 and v2 orfs and part of the intergenic region were sequenced in 111 isolates. the very low initial diversity of tylcv-mld[re] in la réunion was followed by a quasi-linear increase in genetic di ... | 2007 | 17609843 |
| 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 |