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GrainGenes Reference Report: PBR-143-2

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Reference	PBR-143-2
Title	Meta-analysis of the genetics of resistance to Fusarium head blight and deoxynivalenol accumulation in barley and considerations for breeding
Journal	Plant Breeding
Year	2023
Volume	143
Pages	2-25
Author	Sallam AH [ Show all 7 ]
Abstract	Fusarium head blight (FHB) or scab is a devastating disease of barley that severely reduces the yield and quality of the grain. Additionally, mycotoxins produced by the causal Fusarium species can contaminate harvested grain, resulting in food safety concerns and further economic losses. In the Upper Midwest region of the United States, Fusarium graminearum is the primary causal agent, and deoxynivalenol (DON) is the main mycotoxin associated with Fusarium infection. Deployment of resistant cultivars is an important component of an integrated strategy to manage this disease. Unfortunately, few good sources of FHB resistance have been identified from the evaluation of large collections of Hordeum germplasm. Over the past 25 years, many barley mapping populations have been developed with selected resistance sources to identify the number, chromosomal position and allelic effect of quantitative trait loci (QTL) contributing to FHB resistance and DON accumulation. To consolidate the genetic data generated from 14 mapping studies that included 22 bi- or tri-parental mapping populations and three genome-wide association (GWAS) mapping panels, a consensus map was constructed that includes 4145 SNP, SSR, RFLP and AFLP markers. A meta-analysis based on this consensus map revealed 96 QTL for FHB resistance and 57 for DON accumulation scattered across the barley genome. Many of the QTL explained a low percentage (<10%) of variation for the traits and were often found significant in only one or a few environments in multi-year/multi-location field trials. Moreover, many of the FHB/DON QTL mapped to chromosomal positions coincided with various agro-morphological traits that could influence the level of disease (e.g. heading date, height, spike density, and spike angle), raising the important question of whether the former are true resistance factors or are simply the result of pleiotropy with the latter. Considering the magnitude of effect, consistency of detection across environments and independence from agro-morphological traits, only three of 96 QTL for FHB and five of 57 QTL for DON were considered priority targets for marker-assisted selection (MAS). In spite of the challenge for having a limited number of useful QTL for breeding, genomic selection holds promise for increasing the efficiency of developing FHB-resistant barley cultivars, an essential component of the overall management strategy for the disease.
External Databases	https://doi.org/10.1111/pbr.13121
Map Data	Barley, Consensus 2023, FHB
QTL	[ Hide all but 1 of 256 ] MetaQ.FHB_1H_1 MetaQ.FHB_1H_2 MetaQ.FHB_1H_3 MetaQ.FHB_1H_4 MetaQ.FHB_1H_5 MetaQ.FHB_1H_6 MetaQ.FHB_1H_7 MetaQ.DON_1H_1 MetaQ.DON_1H_2 MetaQ.DON_1H_3 MetaQ.HD_1H_1 MetaQ.FHB_2H_1 MetaQ.FHB_2H_2 MetaQ.FHB_2H_3 MetaQ.FHB_2H_4 MetaQ.FHB_2H_5 MetaQ.FHB_2H_6 MetaQ.FHB_2H_7 MetaQ.FHB_2H_8 MetaQ.FHB_2H_9 MetaQ.FHB_2H_10 MetaQ.FHB_2H_11 MetaQ.FHB_2H_12 MetaQ.FHB_2H_14 MetaQ.FHB_2H_13 MetaQ.FHB_2H_15 MetaQ.FHB_2H_16 MetaQ.FHB_2H_17 MetaQ.FHB_2H_18 MetaQ.FHB_2H_19 MetaQ.FHB_2H_20 MetaQ.FHB_2H_21 MetaQ.FHB_2H_22 MetaQ.FHB_2H_23 MetaQ.FHB_2H_24 MetaQ.FHB_2H_25 MetaQ.FHB_2H_26 MetaQ.FHB_2H_27 MetaQ.FHB_2H_28 MetaQ.FHB_2H_29 MetaQ.FHB_2H_30 MetaQ.FHB_2H_31 MetaQ.FHB_2H_32 MetaQ.FHB_2H_33 MetaQ.FHB_2H_34 MetaQ.FHB_2H_35 MetaQ.FHB_2H_36 MetaQ.FHB_2H_37 MetaQ.FHB_2H_38 MetaQ.FHB_2H_39 MetaQ.FHB_2H_40 MetaQ.FHB_2H_41 MetaQ.FHB_2H_42 MetaQ.FHB_2H_43 MetaQ.DON_2H_1 MetaQ.DON_2H_2 MetaQ.DON_2H_3 MetaQ.DON_2H_4 MetaQ.DON_2H_5 MetaQ.DON_2H_6 MetaQ.DON_2H_7 MetaQ.DON_2H_8 MetaQ.DON_2H_9 MetaQ.DON_2H_14 MetaQ.DON_2H_13 MetaQ.DON_2H_10 MetaQ.DON_2H_11 MetaQ.DON_2H_12 MetaQ.DON_2H_15 MetaQ.DON_2H_16 MetaQ.DON_2H_17 MetaQ.DON_2H_18 MetaQ.DON_2H_19 MetaQ.DON_2H_20 MetaQ.DON_2H_21 MetaQ.DON_2H_22 MetaQ.DON_2H_23 MetaQ.DON_2H_24 MetaQ.DON_2H_25 MetaQ.DON_2H_26 MetaQ.DON_2H_27 MetaQ.HD_2H_1 MetaQ.HD_2H_2 MetaQ.HD_2H_3 MetaQ.HD_2H_4 MetaQ.HD_2H_5 MetaQ.HD_2H_6 MetaQ.HD_2H_7 MetaQ.HD_2H_8 MetaQ.HD_2H_9 MetaQ.HD_2H_10 MetaQ.HD_2H_11 MetaQ.HD_2H_12 MetaQ.HD_2H_13 MetaQ.HD_2H_14 MetaQ.HD_2H_15 MetaQ.HD_2H_16 MetaQ.HD_2H_17 MetaQ.HD_2H_18 MetaQ.HD_2H_19 MetaQ.HD_2H_20 MetaQ.HD_2H_21 MetaQ.HD_2H_22 MetaQ.HD_2H_23 MetaQ.HD_2H_24 MetaQ.HT_2H_1 MetaQ.HT_2H_2 MetaQ.HT_2H_3 MetaQ.HT_2H_4 MetaQ.HT_2H_5 MetaQ.HT_2H_6 MetaQ.HT_2H_7 MetaQ.HT_2H_8 MetaQ.HT_2H_9 MetaQ.HT_2H_10 MetaQ.HT_2H_11 MetaQ.HT_2H_12 MetaQ.HT_2H_13 MetaQ.SD_2H_1 MetaQ.SA_2H_1 MetaQ.SA_2H_2 MetaQ.SA_2H_3 MetaQ.RNN_2H_1 MetaQ.KPS_2H_1 MetaQ.KPS_2H_2 MetaQ.KPS_2H_3 MetaQ.FHB_3H_1 MetaQ.FHB_3H_2 MetaQ.FHB_3H_3 MetaQ.FHB_3H_4 MetaQ.FHB_3H_5 MetaQ.FHB_3H_6 MetaQ.FHB_3H_7 MetaQ.FHB_3H_8 MetaQ.FHB_3H_9 MetaQ.DON_3H_1 MetaQ.DON_3H_2 MetaQ.DON_3H_3 MetaQ.DON_3H_4 MetaQ.DON_3H_5 MetaQ.DON_3H_6 MetaQ.DON_3H_7 MetaQ.HD_3H_1 MetaQ.HD_3H_2 MetaQ.HD_3H_3 MetaQ.HT_3H_1 MetaQ.HT_3H_2 MetaQ.HT_3H_3 MetaQ.HT_3H_4 MetaQ.HT_3H_5 MetaQ.HT_3H_6 MetaQ.HT_3H_7 MetaQ.HT_3H_8 MetaQ.KPS_3H_1 MetaQ.KPS_3H_2 MetaQ.KPS_3H_3 MetaQ.FHB_4H_1 MetaQ.FHB_4H_2 MetaQ.FHB_4H_3 MetaQ.FHB_4H_4 MetaQ.FHB_4H_5 MetaQ.FHB_4H_6 MetaQ.DON_4H_1 MetaQ.DON_4H_2 MetaQ.DON_4H_3 MetaQ.DON_4H_4 MetaQ.DON_4H_5 MetaQ.HD_4H_1 MetaQ.HT_4H_1 MetaQ.HT_4H_2 MetaQ.HT_4H_3 MetaQ.HT_4H_4 MetaQ.HT_4H_5 MetaQ.KPS_4H_1 MetaQ.KPS_4H_2 MetaQ.FHB_5H_1 MetaQ.FHB_5H_2 MetaQ.FHB_5H_3 MetaQ.FHB_5H_4 MetaQ.FHB_5H_5 MetaQ.FHB_5H_6 MetaQ.DON_5H_1 MetaQ.DON_5H_2 MetaQ.DON_5H_3 MetaQ.HD_5H_1 MetaQ.HD_5H_2 MetaQ.HD_5H_3 MetaQ.HD_5H_4 MetaQ.HD_5H_5 MetaQ.HT_5H_1 MetaQ.HT_5H_2 MetaQ.HT_5H_3 MetaQ.HT_5H_4 MetaQ.HT_5H_5 MetaQ.HT_5H_6 MetaQ.FHB_6H_1 MetaQ.FHB_6H_2 MetaQ.FHB_6H_3 MetaQ.FHB_6H_4 MetaQ.FHB_6H_5 MetaQ.FHB_6H_6 MetaQ.FHB_6H_7 MetaQ.FHB_6H_8 MetaQ.FHB_6H_9 MetaQ.FHB_6H_10 MetaQ.FHB_6H_11 MetaQ.FHB_6H_12 MetaQ.FHB_6H_13 MetaQ.FHB_6H_14 MetaQ.FHB_6H_15 MetaQ.DON_6H_1 MetaQ.DON_6H_2 MetaQ.DON_6H_3 MetaQ.DON_6H_4 MetaQ.DON_6H_5 MetaQ.DON_6H_6 MetaQ.HD_6H_1 MetaQ.HD_6H_2 MetaQ.HD_6H_3 MetaQ.HD_6H_4 MetaQ.HD_6H_5 MetaQ.HT_6H_1 MetaQ.HT_6H_2 MetaQ.HT_6H_3 MetaQ.FHB_7H_1 MetaQ.FHB_7H_2 MetaQ.FHB_7H_3 MetaQ.FHB_7H_4 MetaQ.FHB_7H_5 MetaQ.FHB_7H_6 MetaQ.FHB_7H_7 MetaQ.FHB_7H_8 MetaQ.FHB_7H_9 MetaQ.FHB_7H_10 MetaQ.DON_7H_1 MetaQ.DON_7H_2 MetaQ.DON_7H_3 MetaQ.DON_7H_4 MetaQ.DON_7H_5 MetaQ.DON_7H_6 MetaQ.HD_7H_1 MetaQ.HD_7H_2 MetaQ.HD_7H_3 MetaQ.HD_7H_4 MetaQ.HD_7H_5 MetaQ.HD_7H_6 MetaQ.HD_7H_7 MetaQ.HD_7H_8 MetaQ.HT_7H_1 MetaQ.HT_7H_2 MetaQ.HT_7H_3 MetaQ.HT_7H_4 MetaQ.HT_7H_5 MetaQ.HT_7H_6 MetaQ.HT_7H_7 MetaQ.SA_7H_1

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