| tomato yellow spot virus, a tomato-infecting begomovirus from brazil with a closer relationship to viruses from sida sp., forms pseudorecombinants with begomoviruses from tomato but not from sida. | geminiviruses are characterized by a circular, single-stranded dna genome and twinned icosahedral particles. begomoviruses (whitefly-transmitted geminiviruses) are a major constraint to crop production worldwide. in brazil, tomato-infecting begomoviruses emerged as serious pathogens over the last 10 years, due to the introduction of a new biotype of the insect vector. tomato yellow spot virus (toysv) is a newly described begomovirus originally isolated from tomato, but phylogenetically closer to ... | 2006 | 17098986 |
| synergism and negative interference during co-infection of tomato and nicotiana benthamiana with two bipartite begomoviruses. | in brazil, at least eight begomoviruses including tomato rugose mosaic virus (tormv) and tomato yellow spot virus (toysv) infect tomatoes. toysv symptoms in tomato and nicotiana benthamiana appear earlier and are more severe compared to those of tormv. we investigated the role of several factors in this differential adaptation. to analyze infection kinetics, a single leaf was inoculated and subsequently detached after different periods of time. viral dna accumulation was quantified in plants, vi ... | 2009 | 19282016 |
| the tomato rlk superfamily: phylogeny and functional predictions about the role of the lrrii-rlk subfamily in antiviral defense. | receptor-like kinases (rlks) play key roles during development and in responses to the environment. despite the relevance of the rlk family and the completion of the tomato genome sequencing, the tomato rlk family has not yet been characterized, and a framework for functional predictions of the members of the family is lacking. | 2012 | 23198823 |
| detection and identification of the first viruses in chia (salvia hispanica). | chia (salvia hispanica), an herbaceous plant native to latin america, has become important in the last 20 years due to its beneficial effects on health. here, we present the first record and identification of two viruses in chia plants. the comparison of the complete nucleotide sequences showed the presence of two viral species with the typical genome organization of bipartite new world begomovirus, identified as sida mosaic bolivia virus 2 and tomato yellow spot virus, according to the ictv tax ... | 2014 | 25243369 |