Genetic analyses of native Fusarium head blight resistance in two spring wheat populations identifies QTL near the B1, Ppd-D1, Rht-1, Vrn-1, Fhb1, Fhb2, and Fhb5 loci

Thambugala, Dinushika; Brûlé‐Babel, Anita L.; Blackwell, Barbara A.; Fedak, George; Foster, Adam; MacEachern, Dan; Gilbert, J.; Henríquez, María Antonia; Martin, Richard A.; McCallum, Brent D.; Spaner, Dean; Iqbal, Muhammad; Pozniak, Curtis; N’Diaye, Amidou; McCartney, Curt A.

doi:10.1007/s00122-020-03631-y

Cited by 14 publications

(17 citation statements)

References 71 publications

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“…These cultivars, together with the hard red spring cultivar 'AC Barrie', are grown extensively on the Canadian Prairies. Mapping of the QTL in 'AC Barrie' was carried out recently (Thambugala et al 2020). Notably, the spring red wheat 'AAC Tenacious' is currently the only Canadian spring wheat cultivar with a 'resistant' rating to FHB (Brown et al 2015), and the major QTL of this cultivar have recently been mapped (Dhariwal et al 2020).…”

Section: Fusarium Head Blight Candidate Disease Resistance Genes and Breeding Strategies In Wheatmentioning

confidence: 99%

Building on a foundation: advances in epidemiology, resistance breeding, and forecasting research for reducing the impact of fusarium head blight in wheat and barley

Fernando

Oghenekaro

Tucker

et al. 2021

Canadian Journal of Plant Pathology

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Section: Fusarium Head Blight Candidate Disease Resistance Genes and Breeding Strategies In Wheatmentioning

confidence: 99%

Building on a foundation: advances in epidemiology, resistance breeding, and forecasting research for reducing the impact of fusarium head blight in wheat and barley

Fernando

Oghenekaro

Tucker

et al. 2021

Canadian Journal of Plant Pathology

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“…The photoperiod gene Ppd-D1, located in the genetic region of Xbcd1970-Xbcd262 on chromosome 2D, carried the most normal QTLs and a conditional QTL for grain yield [25,34,56]. For this locus, grain yield was suppressed by the aboveground dry matter per plant, and the aboveground dry matter per plant was suppressed by nearly all photosynthesis traits with the exception of stomatal conductance at the seedling and grain filling stages, net photosynthetic rate at the seedling stage and transpiration rate at the seedling and heading stages.…”

Section: Qtl Analysis For Grain Yield Conditioned On Yield Componentsmentioning

confidence: 99%

Contribution of photosynthetic- and yield-related traits towards grain yield in wheat at the individual quantitative trait locus level

Cai

Mao

et al. 2020

Biotechnology & Biotechnological Equipment

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Grain yield improvement in wheat (Triticum aestivum L) requires understanding of the genetic control of grain yield components and other related traits. In this study, a total of 82 and 314 quantitative trait loci (QTLs) were associated with grain yield and grain yield components after harvest and photosynthetic traits at the seedling, heading and grain filling stages from a recombinant inbred line population by normal and multivariate QTLs analysis, respectively. Sixty-one QTL clusters explained from 4.42% to 27.72% of phenotypic variances for 2-76 traits. A comparison between the normal and conditional QTL mapping found that grain yield showed significant genetic correlation with grain yield components and photosynthetic traits on five QTLs. In the genetic region between Xbarc99 and Xbarc169 on chromosome 1D, grain yield was entirely contributed by thousand kernel weight and harvest index. At the same region, harvest index was contributed by transpiration rate at seedling stage, intercellular CO 2 concentration, stomatal conductance, net photosynthetic rate and transpiration rate at heading stage; and intercellular CO 2 concentration, net photosynthetic rate and transpiration rate at grain filling stage, whereas thousand kernel weight was suppressed by a normal QTL for chlorophyll content at grain filling stage in this region. The direct comparison analyses between grain yield with photosynthetic traits showed similar genetic relationships in this region. Manipulation of genes found within these QTL clusters might improve important agronomic traits and grain yield.

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“…Using two Recombinant Inbred Lines (RILs) populations with one common parent, named AC Barrie, from Canadian spring wheat, QFhb.mcb-3B, QFhb.mcb-6B, and QFhb.mcb-5A.1 were mapped to the expected location of Fhb1, Fhb2, and Fhb5, respectively [10]. On chromosome 5B, the prominent resistance gene, QFhb.mbr-5B was found to explain up to 36% of the phenotypic variation [10].…”

Section: Introductionmentioning

confidence: 99%

“…Another important locus on chromosome 2DL was thought to be transcription factor TaWRKY70, which regulates the expression of metabolite biosynthetic genes including TaACT, TaDGK, and TaGLI to in uence FHB resistance [8,9]. Using two Recombinant Inbred Lines (RILs) populations with one common parent, named AC Barrie, from Canadian spring wheat, QFhb.mcb-3B, QFhb.mcb-6B, and QFhb.mcb-5A.1 were mapped to the expected location of Fhb1, Fhb2, and Fhb5, respectively [10]. On chromosome 5B, the prominent resistance gene, QFhb.mbr-5B was found to explain up to 36% of the phenotypic variation [10].…”

Section: Introductionmentioning

confidence: 99%

Identification of a Novel Genomic Region Associated With Resistance to Fusarium Head Blight in Chinese Winter Wheat

Zhao¹,

Zhao²,

Ji³

et al. 2021

Preprint

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Background: Fusarium head blight (FHB) is a disease affecting wheat spikes caused by Fusarium species, which leads to cases of severe yield reduction and seed contamination. Therefore, identifying resistance genes from various sources is always of importance to wheat breeders. In this study, a genome-wide association study (GWAS) focusing on FHB using a high-density genetic map constructed with 90K single nucleotide polymorphism (SNP) arrays in a panel of 205 elite winter wheat accessions, was conducted in 3 environments. Results: Sixty-six significant marker–trait associations (MTAs) were identified (P<0.001) on fifteen chromosomes explaining 5.4–11.2% of the phenotypic variation therein. Some important new genomic regions involving FHB resistance were found on chromosomes 2A, 3B, 5B, 6A, and 7B. On chromosome 7B, 6 MTAs at 92 genetic positions were found in 2 environments. Moreover, there were 11 MTAs consistently associated with diseased spikelet rate and diseased rachis rate as pleiotropic effect loci. Eight new candidate genes of FHB resistance were predicated in wheat. Of which, three genes: TraesCS5D01G006700, TraesCS6A02G013600, and TraesCS7B02G370700 on chromosome 5DS, 6AS, and 7BL, respectively, were important in defending against FHB by regulating chitinase activity, calcium ion binding, intramolecular transferase activity, and UDP-glycosyltransferase activity in wheat. In addition, a total of six excellent alleles associated with wheat scab resistance were discovered. Conclusion: These results provide important genes/loci for enhancing FHB resistance in wheat breeding populations by marker-assisted selection.

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Genetic analyses of native Fusarium head blight resistance in two spring wheat populations identifies QTL near the B1, Ppd-D1, Rht-1, Vrn-1, Fhb1, Fhb2, and Fhb5 loci

Cited by 14 publications

References 71 publications

Building on a foundation: advances in epidemiology, resistance breeding, and forecasting research for reducing the impact of fusarium head blight in wheat and barley

Building on a foundation: advances in epidemiology, resistance breeding, and forecasting research for reducing the impact of fusarium head blight in wheat and barley

Contribution of photosynthetic- and yield-related traits towards grain yield in wheat at the individual quantitative trait locus level

Identification of a Novel Genomic Region Associated With Resistance to Fusarium Head Blight in Chinese Winter Wheat

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