Tomato Spotted Wilt Virus-resistant Fresh-market Tomato Breeding Lines: NC 58S, NC 123S, NC 127S, and NC 132S

Gardner, Richard G.; Panthee, Dilip R.

doi:10.21273/hortsci.47.4.531

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…B . tabaci MEAM1, as determined by Dr. Cindy McKenzie (USDA-ARS) using PCR analysis with primers based on the mtCOI gene [ 38 – 41 ], were maintained on the tomato line NC123S [ 42 ] in multiple cages (1462W, Bioquip Products Inc.) within a climate controlled growth chamber in the Guterman Bioclimatic Laboratory and Greenhouse Complex at Cornell University in Ithaca, NY. Whiteflies used to start this colony were provided by Dr. John Sanderson, Department of Entomology at Cornell University.…”

Section: Methodsmentioning

confidence: 99%

Differential and Synergistic Functionality of Acylsugars in Suppressing Oviposition by Insect Herbivores

et al. 2016

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Acylsugars are secondary metabolites exuded from type IV glandular trichomes that provide broad-spectrum insect suppression for Solanum pennellii Correll, a wild relative of cultivated tomato. Acylsugars produced by different S. pennellii accessions vary by sugar moieties (glucose or sucrose) and fatty acid side chains (lengths and branching patterns). Our objective was to determine which acylsugar compositions more effectively suppressed oviposition of the whitefly Bemisia tabaci (Gennadius) (Middle East—Asia Minor 1 Group), tobacco thrips, Frankliniella fusca (Hinds), and western flower thrips, Frankliniella occidentalis (Pergande). We extracted and characterized acylsugars from four S. pennellii accessions with different compositions, as well as from an acylsugar-producing tomato breeding line. We also fractionated the acylsugars of one S. pennellii accession to examine the effects of its components. Effects of acylsugars on oviposition were evaluated by administering a range of doses to oviposition sites of adult whiteflies and thrips in non-choice and choice bioassays, respectively. The acylsugars from S. pennellii accessions and the tomato breeding line demonstrated differential functionality in their ability to alter the distribution of whitefly oviposition and suppress oviposition on acylsugar treated substrates. Tobacco thrips were sensitive to all compositions while western flower thrips and whiteflies were more sensitive to acylsugars from a subset of S. pennellii accessions. It follows that acylsugars could thus mediate plant-enemy interactions in such a way as to affect evolution of host specialization, resistance specificity, and potentially host differentiation or local adaptation. The acylsugars from S. pennellii LA1376 were separated by polarity into two fractions that differed sharply for their sugar moieties and fatty acid side chains. These fractions had different efficacies, with neither having activity approaching that of the original exudate. When these two fractions were recombined, the effect on both whiteflies and thrips exceeded the sum of the two fractions’ effects, and was similar to that of the original exudate. These results suggest that increasing diversity of components within a mixture may increase suppression through synergistic interactions. This study demonstrates the potential for composition-specific deployment of acylsugars for herbivore oviposition suppression, either through in planta production by tomato lines, or as biocides applied by a foliar spray.

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Section: Methodsmentioning

confidence: 99%

Differential and Synergistic Functionality of Acylsugars in Suppressing Oviposition by Insect Herbivores

et al. 2016

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“…1). NC 123S is a large-fruited tomato breeding line with desirable horticultural traits and multiple disease resistance genes (Ve, I, I-2, I-3, Sw-5, and Mi genes) obtained from selfing the 'Amelia' F 1 hybrid (Gardner and Panthee, 2012). NC 1LF is derived from the same cross (NC 056) leading to NC 1CS, the parent of 'Mountain Majesty' (Panthee and Gardner, 2011), and diverging from NC 1CS in the F 3 generation.…”

Section: Originmentioning

confidence: 99%

‘Mountain Regina’: Multiple Disease Resistant Fresh-market Hybrid Tomato and Its Parents, NC 1LF and NC 2LF

Panthee¹

2021

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Additional index words. crimson, large-fruited tomato, I-3 gene, ogc gene, Mi gene, Sw-5 gene, Tm-2 gene 'Mountain Regina' is a large-fruited, freshmarket hybrid tomato (Solanum lycopersicum L.) adapted to vine-ripe production. It is resistant to verticillium wilt (Verticillium dahliae Kleb) race 1 (Ve gene); fusarium wilt [Fusarium oxysporum f.sp. lycopersici (Sacc.) Snyd. and Hans.] races 1, 2, and 3 (I, I-2, and I-3 genes); root-knot nematodes (Meloidogyne spp., Mi gene); Tomato mosaic virus (Tm-2 gene); and Tomato spotted wilt virus (Sw-5 gene).

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Natural Resources Resistance to Tomato Spotted Wilt Virus (TSWV) in Tomato (Solanum lycopersicum)

Zhang

Islam

et al. 2021

IJMS

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Tomato spotted wilt virus (TSWV) is one of the most destructive diseases affecting tomato (Solanum lycopersicum) cultivation and production worldwide. As defenses against TSWV, natural resistance genes have been identified in tomato, including Sw-1a, Sw-1b, sw-2, sw-3, sw-4, Sw-5, Sw-6, and Sw-7. However, only Sw-5 exhibits a high level of resistance to the TSWV. Thus, it has been cloned and widely used in the breeding of tomato with resistance to the disease. Due to the global spread of TSWV, resistance induced by Sw-5 decreases over time and can be overcome or broken by a high concentration of TSWV. How to utilize other resistance genes and identify novel resistance resources are key approaches for breeding tomato with resistance to TSWV. In this review, the characteristics of natural resistance genes, natural resistance resources, molecular markers for assisted selection, and methods for evaluating resistance to TSWV are summarized. The aim is to provide a theoretical basis for identifying, utilizing resistance genes, and developing tomato varieties that are resistant to TSWV.

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Tomato Spotted Wilt Virus-resistant Fresh-market Tomato Breeding Lines: NC 58S, NC 123S, NC 127S, and NC 132S

Cited by 3 publications

References 3 publications

Differential and Synergistic Functionality of Acylsugars in Suppressing Oviposition by Insect Herbivores

Differential and Synergistic Functionality of Acylsugars in Suppressing Oviposition by Insect Herbivores

‘Mountain Regina’: Multiple Disease Resistant Fresh-market Hybrid Tomato and Its Parents, NC 1LF and NC 2LF

Natural Resources Resistance to Tomato Spotted Wilt Virus (TSWV) in Tomato (Solanum lycopersicum)

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