Breeding for Acylsugar‐Mediated Control of Insects and Insect‐Transmitted Virus in Tomato

Mutschler, Martha A.

doi:10.1002/9781119828235.ch9

Cited by 1 publication

(4 citation statements)

References 127 publications

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“…The commercial tomato hybrid "Florida-47" (FL-47) and the entry FLX-TY3 (Fla. 7946 NIL heterozygous for Ty-3) were supplied by the University of Florida's Gulf Coast Research and Education Center (GCREC) and have simple trichomes, only a few of which bear detectable droplets; these lines accumulate only trace amounts of acylsugars compared to the acylsugarproducing entries and were included as negative controls. Seeds of other tomato entries were produced at Cornell University [64]. The Cornell benchmark acylsugar-accumulating line CU071026 was used as an acylsugar control.…”

Section: Tomato Entries Used In Experiments and Growth Conditionsmentioning

confidence: 99%

“…Our study evaluated the impact of endogenous acylsugar production in tomato entries derived from S. pennellii [64] on the incidence of TYLCV in the field, starting with young plants. Notably, in comparison to the commercial tomato controls, whitefly egg and nymph abundance was decreased on the grouping of entries with higher amounts of acylsugars, particularly toward the end of the season, and decreased TYLCV infection at 51 DAP was observed in acylsugar accumulating tomato entries individually and in low, medium, and high acylsugar groupings.…”

Section: Plos Onementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Breeding efforts with S. pennellii accession LA716 led to the development of an acylsugar breeding line, CU071026, that accumulates moderate amounts of acylsucroses [64]. Evaluation of CU071026 and related germplasm with additional QTL affecting amount of acylsugars accumulated demonstrated improved resistance to whiteflies compared to non-acylsugar controls [54,64]). Additional QTL from S. pennellii LA716 that impact acylsugar chemistry [61,[65][66][67] were introgressed to generate a set of mono-introgression addition lines in the CU071026 background that produce moderate-high amounts of acylsucrose acylsugars with distinct alterations in fatty acid profiles [68].…”

Section: Introductionmentioning

confidence: 99%

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The amount and chemistry of acylsugars affects sweetpotato whitefly (Bemisia tabaci) oviposition and development, and tomato yellow leaf curl virus incidence, in field grown tomato plants

Smeda,

Smith,

Mutschler

2023

PLoS ONE

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The objectives of this study were to ascertain the impact of endogenous production of trichome-exuded acylsugars on insects and insect transmitted virus by evaluating tomato lines and their hybrids bred for acylsugar production under field settings on whiteflies and the whitefly-transmitted tomato yellow leaf curl virus. Specifically, we utilized a diverse array of tomato lines and hybrids bred for changes in acylsugar amount or type, grown in three field trials under natural whitefly and virus pressure, to investigate whether the amount of accumulated acylsugars and or the chemical profile of the acylsugars were associated with greater resistance to whiteflies and reduced incidence of tomato yellow leaf curl virus. There was considerable variation in the abundance of whitefly eggs and nymphs and incidence of tomato yellow leaf curl virus across experiments and between entries. Increasing amount of acylsugars accumulated by the tomato entries was associated with a reduction in the abundance of whitefly eggs and nymphs and a reduction in the incidence of tomato yellow leaf curl virus. Additionally, we identified lines with changes in several acylsugar fatty acids that were associated with decreased abundance of whitefly eggs and nymphs and reduced incidence of tomato yellow leaf curl virus. These results inform the utility of acylsugars as a host plant defense system for improving resistance to whiteflies and their transmitted viruses, with potential for reducing insecticides as a control method for whiteflies and provide breeding targets for optimization of existing acylsugar tomato lines to create lines with the most efficacious amount and chemistry of acylsugars.

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Section: Tomato Entries Used In Experiments and Growth Conditionsmentioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%