Ty-3, a begomovirus resistance locus near the Tomato yellow leaf curl virus resistance locus Ty-1 on chromosome 6 of tomato

Ji, Yuanfu; Schuster, David J.; Scott, John F.

doi:10.1007/s11032-007-9102-1

Cited by 64 publications

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“…Tomato yellow leaf curl virus, Tomato mosaic virus S. chilense [198] Ty-4 Tomato yellow leaf curl virus S. chilense [197] Ty-5 S. peruvianum [199] tcm-1 …”

Section: Tomato Resistance Genes and Their Modes Of Actionmentioning

confidence: 99%

Resistance-Gene-Mediated Defense Responses against Biotic Stresses in the Crop Model Plant Tomato

Chaudhary¹,

Hs²

2017

J Plant Pathol Microbiol

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Complex series of defense response activation, consistent with the studies conducted in the model plant Arabidopsis thaliana, has been demonstrated in tomato during incompatible pathogen/pest interactions. During the past two decades, numerous tomato genes have been identified conferring resistance to diverse pathogens/ pests in a gene-for-gene manner. A few of these cloned resistance (R)-genes (Cf and Pto) have been extensively studied and excellent existing reviews describe R-gene function, interacting proteins and the mechanism of Avirulence effector perception. Recent comprehensive gene expression analysis of tomato responses to biotic stresses resulted in identification of genes and potential molecular processes that are associated with several of the tomato R-genemediated resistance responses. The purpose of this review is to provide an overview of tomato R-gene-mediated defense responses to different pathogens/pests together with the components involved in the organization of this highly complex network of plant defenses. Global transcriptome profiling is an important initial step for dissecting biological systems particularly with systems where not much is known about the molecular basis of the resistance response. The enrichment of the tomato EST databases initiated several genomewide profiling studies [32][33][34][35]. This facilitated significant progress in the characterization of tomato incompatible responses to Avr pathogens, contributing to future gene identification and to the understanding of the potential molecular processes that are associated with the different tomato R-gene-mediated resistances [33]. With the advent of next generation sequencing technologies, and the tomato genome sequence [36], additional genome wide studies have been conducted. With a genome sequence and a high-density linkage and molecular maps [37], combined with being a host for numerous pathogens and pests, tomato has emerged as a powerful model system for crop plant defense response studies. Moreover, the introgression of R-genes from wild species into cultivated tomato provides a unique opportunity to study different resistance mechanisms against very diverse biotic agents in a single plant. In this review, we summarize the current understanding of R-genes in tomato and the downstream signaling components that are critical for activating defense responses. In addition, we discuss the current and future technologies that will significantly enhance our knowledge about tomato-pathogen interactions and will provide alternative strategies to develop a sustainable resistance. Tomato Resistance Genes and their Modes of ActionHost resistance is an important component of a sustainable disease management system [38]. It is an environmentally benign method that can be used as an alternative to chemicals, as their applicability against Verticillium. The Ve locus contains two closely linked and inversely oriented genes, Ve1 and Ve2, both encoding a RLP-type cell surface receptor. Ve1 R-gene provides resistance against ra...

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“…Tomato yellow leaf curl virus, Tomato mosaic virus S. chilense [198] Ty-4 Tomato yellow leaf curl virus S. chilense [197] Ty-5 S. peruvianum [199] tcm-1 …”

Section: Tomato Resistance Genes and Their Modes Of Actionmentioning

confidence: 99%

Resistance-Gene-Mediated Defense Responses against Biotic Stresses in the Crop Model Plant Tomato

Chaudhary¹,

Hs²

2017

J Plant Pathol Microbiol

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“…However, no TYLCV-resistant gene resources exist in cultivated tomato cultivars, and wild tomato species such as Solanum pimpinellifolium, S. peruvianum, S. chilense, S. habrochaites, and S. cheesmaniae exhibit a high degree of disease resistance (Picó et al, 1996;Ji et al, 2007b;Scott, 2007;Vidavski, 2007). A total of 6 tomato TYLCV genes have been identified and named as Ty-1, Ty-2, Ty-3, Ty-4, Ty-5, andTy-5 (Hanson et al, 2000, 2006;Garcia et al, 2007b;Ji et al, 2007aJi et al, , 2009bHutton et al, 2012). These diseaseresistant genes were derived from different wild-type tomatoes.…”

Section: Introductionmentioning

confidence: 99%

“…Studies also reported that the marker TG105A was tightly linked to Ty-2, but may also be related to the I2 gene, which can cause false-positive results (Garcia et al, 2007a). Currently, though molecular markers for the Ty-2 gene have been developed (Hanson et al, 2006;Garcia et al, 2007b;Ji et al, 2007aJi et al, , 2009bHutton et al, 2012), further analysis on Ty-2 candidate genes has not been reported. In 2011, whole-genome sequencing of the tomato was completed (Tomato Genome Consortium, 2012), providing an opportunity for the screening of Ty-2 candidate genes using a bioinformatic approach.…”

Section: Introductionmentioning

confidence: 99%

In silico analysis of gene content in tomato genomic regions mapped to the Ty-2 resistance gene

et al. 2015

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ABSTRACT. Tomato yellow leaf curl virus is one of the main diseases affecting tomato production worldwide. Previous studies have shown that Ty-2 is an important resistance gene located between molecular markers C2_At2g28250 (82.3 cM) and T0302 (89.0 cM), and exhibits strong resistance to tomato yellow leaf curl virus in Asia. In this study, Ty-2 candidate genes were subjected to bioinformatic analysis for the sequenced tomato genome. We identified 69 genes between molecular markers C2_At2g28250 and T0302, 22 of which were disease-related resistant genes, including nucleotide binding site-leucine-rich repeat disease resistance genes, protease genes (protein kinase, kinase receptor, and protein isomerase), cytochromes, and transcription factors. Expressed sequence tag analysis revealed that 77.3% (17/22) of candidate disease-resistance genes were expressed, involving 143 expressed sequence tags. Based on full-length cDNA sequence analysis, 7 candidate genes were found, 4 of which were involved in tomato responses to pathogens. Microarray ex-Y.F. Liu et al. 7948©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (3): 7947-7956 (2015) pression analysis also showed that most candidate genes were involved in the tomato responses to multiple pathogens, including fungi, viruses, and bacteria. RNA-seq expression analysis revealed that all candidate genes participated in tomato growth and development.

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“…Some TYLCD resistance genes have been identified from different wild tomato relatives. Ty-1 (Zamir et al 1994), Ty-3 (Ji et al 2007 and Ty-4 (Ji et al 2009) come from S. chilense, Ty-2 was identified in S. habrochaites (Hanson et al 2006), and Ty-5 in S. peruvianum (Anbinder et al 2009). Quantitative resistance has also been reported derived from S. peruvianum (Pilowsky and Cohen, 1990;Vidavsky et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Initial development of a set of introgression lines from Solanum peruvianum PI 126944 into tomato: exploitation of resistance to viruses

et al. 2013

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A set of introgression lines from S. peruvianum PI 126944 into the genetic background of cultivated tomato (S. lycopersicum) is being developed. Several generations were derived from three interspecific hybrids previously obtained. A lot of crosses and embryo rescue were required to obtain until the third backcross, due to the high incompatibility existing between tomato and PI 126944. Crosses between F1 plants allowed the obtaining of a pseudo-F2 generation. The same procedure was followed until pseudo-F6 generation. Additional crosses between plants of different generations were made in order to increase progeny. Among a total number of 263 molecular markers tested, 105 resulted polymorphic between tomato and PI 126944. This set of polymorphic markers consisted in 90 Simple Sequence Repeats and 15 Cleaved Amplified Polymorphic Sequences. Generations available were genotyped with these markers, observing a progressive reduction in the S. peruvianum genome in the most advanced. A reduction of incompatibility was achieved as a consequence of the S. peruvianum genome reduction. In addition, S. peruvianum genome was almost completely represented considering the different plants of the most advanced generations, so the set of ILs will be basically developed from them. Tomato yellow leaf curl virus (TYLCV) and Tomato spotted wilt virus (TSWV) resistance was evaluated in some generations, having been successfully introgressed and expressed into tomato background.

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Ty-3, a begomovirus resistance locus near the Tomato yellow leaf curl virus resistance locus Ty-1 on chromosome 6 of tomato

Abstract: The column headings of the markers in Table 5 of the original were incorrect. The correct headings are TG231 (left column) and PG3 (right column).The online version of the original article can be found at http:// dx

Cited by 64 publications

References 0 publications

Resistance-Gene-Mediated Defense Responses against Biotic Stresses in the Crop Model Plant Tomato

Resistance-Gene-Mediated Defense Responses against Biotic Stresses in the Crop Model Plant Tomato

In silico analysis of gene content in tomato genomic regions mapped to the Ty-2 resistance gene

Initial development of a set of introgression lines from Solanum peruvianum PI 126944 into tomato: exploitation of resistance to viruses

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