Mapping of a novel major effect Hessian fly field partial-resistance locus in southern soft red winter wheat line LA03136E71

Winn, Zachary J.; Acharya, Ramesh; Merrill, Keith R.; Lyerly, Jeanette; Brown-Guedira, Gina; Cambron, S. E.; Harrison, Steve; Reisig, Dominic; Murphy, J. Paul

doi:10.1007/s00122-021-03936-6

Cited by 5 publications

(19 citation statements)

References 22 publications

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“…No. CV‐1039, PI 656753) was developed by the small grains breeding program at Virginia Polytechnic Institute and State University and has been shown to be highly susceptible to Hessian flies (Winn et al., 2021). Shirley was derived from a top cross of VA94‐52‐25/Coker9835//VA96‐54‐234.…”

Section: Methodsmentioning

confidence: 99%

“…Six soft red winter wheat lines of differing genetic backgrounds were selected for evaluation. The advanced breeding line, 'LA03136E71' (PI 700336), contains the recently identified Hessian fly field partial-resistance locus QHft.nc-7D that provides a significant reduction in the number of infesting larvae on the plant (Winn et al, 2021); its pedigree is ARLA97-1047-4-2 (P2684/3/N7840//PARULA/VEERY#6)/LA95125BUB73-1. 'NC11546-14' is an advanced breeding line developed by the North Carolina State University Small Grains Breeding Program; its pedigree is AGS 2027/NC09-20986.…”

Section: Plant Materialsmentioning

confidence: 99%

“…The objective of this study was to evaluate the yield loss associated with varying levels of resistance when lines are treated with imidacloprid seed treatment and when left untreated. We evaluated several known susceptible lines, a line anecdotally reported to exhibit tolerance, a line containing the H13 locus, and the two parental lines from the QTL analysis performed by Winn et al (2021) to assess their yield when treated with imidacloprid and when left untreated.…”

Section: Introductionmentioning

confidence: 99%

“…There are reports of Hessian fly partial resistance and/or tolerance, where in the host plant is successfully infested by the Hessian fly larvae, yet it still outperforms truly susceptible genotypes (Hao et al., 2013; Winn et al., 2021). This type of Hessian fly tolerance does not appear to function like traditional H genes, and the mode of action remains unknown.…”

Section: Introductionmentioning

confidence: 99%

“…We evaluated several known susceptible lines, a line anecdotally reported to exhibit tolerance, a line containing the H13 locus, and the two parental lines from the QTL analysis performed by Winn et al. (2021) to assess their yield when treated with imidacloprid and when left untreated.…”

Section: Introductionmentioning

confidence: 99%

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Yield protection afforded by imidacloprid during Hessian fly infestation in six genotypes

2023

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The Hessian fly (Mayetiola destructor Say) is a gall midge that infests and feeds upon wheat (Triticum aestivum L.). Recently, a new form of tolerance (QHft.nc-7D) was identified in the breeding line LA03136E71 (PI 700336). Partial resistance allows immature Hessian fly to thrive in small numbers and does not function like antibiosis. Little is known about the potential yield drag of using partial resistance. In this study, we evaluated six genotypes: one containing QHft.nc-7D (LA03136E71), one containing H13, and four potentially susceptible genotypes. All genotypes were evaluated with two different seed treatment regiments of imidacloprid: no treatment and a two times rate of imidacloprid. All tested genotypes were planted in six-to-eight replications of a full factorial design in four environments. Subsamples of yield trial plots were taken to measure percent infested tillers and a number of larvae/pupae per tiller. Plots were harvested and grain yield was recorded. There was a significant (p[>F] < 0.05) reduction of percent infested tillers and a number of larvae/pupae per tiller related to the imidacloprid treatment. Imidacloprid treatment significantly (p[>T] < 0.05) reduced the number of larvae/pupae per tiller for LA03136E71. There was no significant (p[>T] > 0.05) grain yield increase associated with treatment for LA03136E71. This indicates that a two times application of imidacloprid on LA03136E71 (QHft.nc-7D) did not improve yield yet reduced infestation. Therefore, QHft.nc-7D, while allowing Hessian fly to thrive on the plant, does not significantly compromise yield.

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Section: Methodsmentioning

confidence: 99%

Section: Plant Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Yield protection afforded by imidacloprid during Hessian fly infestation in six genotypes

2023

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Understanding and improving resistance to Hessian fly (Mayetiola destructor) in US wheat using genetic mapping and molecular techniques

Melson,

Ibrahim,

Drake

2023

Crop Science

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Hessian fly (Mayetiola destructor) is a worldwide pest of wheat (Triticum spp.) causing significant yield losses. Utilizing resistant varieties of wheat is the most effective method of control, particularly in mild climates. The effectiveness of resistance genes is lost over time due to genetic diversity within fly populations, and most cultivars have only one resistance gene making them vulnerable to this loss of resistance. Thirty‐seven resistance genes have been mapped along with four Hessian fly response genes and 11 novel quantitative trait loci (QTL). The majority of these exhibit antibiotic resistance, but new research suggests two or more novel QTL are associated with a valuable tolerant response. Studies suggest that fitness costs associated with resistance can be overcome after the initial infestation, but this may not hold true with repeated fly attacks and should be considered when pyramiding genes. Several of these genes do show temperature sensitivity, which should also be considered during breeding. Resistance mechanisms include increased levels of salicylic acid, upregulation of oxo‐phytodienoic acid reductase genes and genes responsible for lipid and protein mobilization, and increased synthesis of polyphenols, among others. These mechanisms are part of an effector‐triggered response. Resistant genes and QTL with KASP markers for use in creating gene pyramids include QHf.hwwg‐6BS, Qhara.icd‐6B, h4, H7, H32, H33, H34, H35, and H36. GWAS has been used to screen large numbers of elite breeding lines for resistance to Hessian fly. Marker trait associations discovered through GWAS can potentially be used in creating gene pyramids with multiple pest and pathogen resistance genes.

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Higher levels of virulence to multiple resistance genes were detected in Hessian fly (Mayetiola destructor) populations from Texas

Melson,

Chen,

Ibrahim

et al. 2024

Crop Science

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Hessian fly is an important pest of wheat worldwide and is of particular importance in Texas and the southeastern United States. Texas is the highest wheat‐producing state that is severely impacted by this insect. The most effective control in these areas is an integrated pest management program, including resistant varieties of wheat. Hessian fly populations are genetically diverse and can rapidly become virulent to specific resistance genes once they are widely deployed in a region. Knowing the current virulence status of regional fly populations is important for wheat breeders and producers. In this study, a virulence analysis was conducted on populations sampled in the northeastern and central Texas regions. This analysis showed that resistance genes H12, H13, H20, H22, H25, H26, H28, H29, H32, H33, H34, and Hdic are still highly effective in these regions. However, it is also evident that Texas fly populations have become more virulent to existing genes in the past 10 years, with very high levels of virulence to resistance genes H3, H5, vH6, H7/H8, H9, H10, H14, H15, H23, H24, H31, and H35/H36.

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Mapping of a novel major effect Hessian fly field partial-resistance locus in southern soft red winter wheat line LA03136E71

Cited by 5 publications

References 22 publications

Yield protection afforded by imidacloprid during Hessian fly infestation in six genotypes

Yield protection afforded by imidacloprid during Hessian fly infestation in six genotypes

Understanding and improving resistance to Hessian fly (Mayetiola destructor) in US wheat using genetic mapping and molecular techniques

Higher levels of virulence to multiple resistance genes were detected in Hessian fly (Mayetiola destructor) populations from Texas

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