Risk premiums due to Fusarium Head Blight (FHB) in wheat and barley

Dahl, Bruce L.; Wilson, William W.

doi:10.1016/j.agsy.2018.01.025

Cited by 44 publications

(38 citation statements)

References 18 publications

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“…DON levels in human food should not exceed 1 ppm, however grain infected with FHB can exceed 20 ppm [114]. Any grain that does not meet the DON limits set by either the USDA or individual buyers can have the value of their grain docked or rejected entirely, causing significant economic damages for farmers [115].…”

Section: Putting the Pieces Together: Genomic Selection For Fusarium mentioning

confidence: 99%

Genomic Selection—Considerations for Successful Implementation in Wheat Breeding Programs

Larkin¹,

Lozada

Mason³

2019

Agronomy

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In order to meet the goal of doubling wheat yield by 2050, breeders must work to improve breeding program efficiency while also implementing new and improved technologies in order to increase genetic gain. Genomic selection (GS) is an expansion of marker assisted selection which uses a statistical model to estimate all marker effects for an individual simultaneously to determine a genome estimated breeding value (GEBV). Breeders are thus able to select for performance based on GEBVs in the absence of phenotypic data. In wheat, genomic selection has been successfully implemented for a number of key traits including grain yield, grain quality and quantitative disease resistance, such as that for Fusarium head blight. For this review, we focused on the ways to modify genomic selection to maximize prediction accuracy, including prediction model selection, marker density, trait heritability, linkage disequilibrium, the relationship between training and validation sets, population structure, and training set optimization methods. Altogether, the effects of these different factors on the accuracy of predictions should be thoroughly considered for the successful implementation of GS strategies in wheat breeding programs.

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Section: Putting the Pieces Together: Genomic Selection For Fusarium mentioning

confidence: 99%

Genomic Selection—Considerations for Successful Implementation in Wheat Breeding Programs

Larkin¹,

Lozada

Mason³

2019

Agronomy

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“…Although the combined use of tolerant wheat cultivars, fungicides, and specific management practices (e.g., tillage and crop rotation) can reduce part of the losses due to the disease (Haidukowski et al, 2005;Hollingsworth et al, 2008;Salgado et al, 2014;Dahl and Wilson, 2018), no efficient strategy can fully control FHB epidemics so far (Mesterházy et al, 2005;Tóth et al, 2008). Primarily addressed through the search for genetic resistance, the last two decades of prolific FHB researches turn out with more than 550 quantitative trait loci (QTLs) (Steiner et al, 2017;Venske et al, 2019), covering the whole genome of wheat but with little effect on resistance improvement and failing in identifying regular resistant genes.…”

Section: Introductionmentioning

confidence: 99%

Searching for FHB Resistances in Bread Wheat: Susceptibility at the Crossroad

et al. 2020

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Fusarium head blight (FHB), primarily caused by Fusarium graminearum, is one of the most devastating fungal wheat diseases. During the past decades, many efforts have been deployed to dissect FHB resistance, investigating both the wheat responses to infection and, more recently, the fungal determinants of pathogenicity. Although no total resistance has been identified so far, they demonstrated that some plant functions and the expression of specific genes are needed to promote FHB. Associated with the increasing list of F. graminearum effectors able to divert plant molecular processes, this fact strongly argues for a functional link between susceptibility-related factors and the fate of this disease in wheat. In this review, we gather more recent data concerning the involvement of plant and fungal genes and the functions and mechanisms in the development of FHB susceptibility, and we discuss the possibility to use them to diversify the current sources of FHB resistance.

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“…Economic losses caused by FHB in wheat alone have been over billions of US dollar since 1990 1,2 . Reduced yields, shriveled grains, mycotoxin contamination, and reduction in seed quality are major factors that are related to the losses due to this disease [3][4][5][6] . The mycotoxins produced by the pathogen remain in processed foods causing health hazards in humans and animals 7 .…”

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confidence: 99%

WFhb1-1 plays an important role in resistance against Fusarium head blight in wheat

Paudel

Zhuang

Galla

et al. 2020

Sci Rep

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Fusarium head blight (FHB) is a severe disease of wheat (Triticum aestivum L.). Qfhb1 is the most important quantitative trait locus (QTL) for FHB resistance. We previously identified wheat gene WFhb1-1 (aka WFhb1-c1) as a candidate for FHB resistance gene. Here we report that WFhb1-1 has been cloned. The gene (GenBank # KU304333.1) consists of a single exon, encoding a putative membrane protein of 127 amino acids. WFhb1-1 protein produced in Pichia pastoris inhibits growth of both F. graminearum and P. pastoris in culture. Western Blotting with anti-WFhb1-1 antibody revealed a significant decrease (p < 0.01) in WFhb1-1 accumulation, 12 hours post Fusarium inoculation in non-Qfhb1-carrier wheat but not in Qfhb1-carrier wheat. Overexpressing WFhb1-1 in non-Qfhb1-carrier wheat led to a significant decrease (p < 0.01) in Fusarium-damaged rachis rate, Fusarium-diseased kernel rate and DON content in harvested kernels, while silencing WFhb1-1 in Qfhb1-carrier wheat resulted in a significant increase (p < 0.01) in FHB severity. Therefore, WFhb1-1 is an important fHB resistance gene with a potential antifungal function and probably a key functional component of Qfhb1 in wheat. A model regarding how WFhb1-1 functions in FHB resistance/susceptibility is hypothesized and discussed.

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Risk premiums due to Fusarium Head Blight (FHB) in wheat and barley

Cited by 44 publications

References 18 publications

Genomic Selection—Considerations for Successful Implementation in Wheat Breeding Programs

Genomic Selection—Considerations for Successful Implementation in Wheat Breeding Programs

Searching for FHB Resistances in Bread Wheat: Susceptibility at the Crossroad

WFhb1-1 plays an important role in resistance against Fusarium head blight in wheat

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