Fusarium head blight resistance loci in a stratified population of wheat landraces and varieties

Li, Tao; Zhang, Dadong; Zhou, Xuemei; Bai, Guihua; Li, Lei; Gu, Shen

doi:10.1007/s10681-015-1539-4

Cited by 20 publications

(17 citation statements)

References 43 publications

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“…Most QTL identified for FHB resistance on chromosome 5B were identified on the long arm, particularly for INC (Hu et al., 2020; Liu et al., 2009; Yu et al., 2008). The only novel QTL for FHB resistance on 5BS was identified in an AMP of Chinese and Japanese landraces, and it was associated with SEV (Li et al., 2016).…”

Section: Discussionmentioning

confidence: 99%

Genome‐wide analysis and prediction of Fusarium head blight resistance in soft red winter wheat

et al. 2020

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Fusarium head blight (FHB) is a disease in wheat (Triticum aestivum L.) caused by the fungal pathogen Fusarium graminearum Schwabe. Fusarium head blight poses potential economic losses and health risks due to the accumulation of the mycotoxin deoxynivalenol (DON) on infected seed heads. The objectives of this study were to identify novel FHB resistance loci using a genome‐wide association study (GWAS) approach and to evaluate two genomic selection (GS) approaches to improve prediction accuracies for FHB traits in a population of 354 soft red winter wheat (SRWW) genotypes. The GS approaches included GS+GWAS, where markers associated with a trait were used as fixed effects, and multivariate GS (MVGS), where correlated traits were used as covariates. The population was evaluated in FHB nurseries in Fayetteville and Newport, AR, and Winnsboro, LA, from 2014 to 2017. Genotypes were phenotyped for DON, Fusarium‐damaged kernels (FDK), incidence (INC), and severity (SEV). Forty‐two single nucleotide polymorphism (SNP) markers were significantly (false discovery rate, q [FDRq] ≤ .10) associated with resistance traits across 17 chromosomes. Ten significant SNPs were identified for DON, notably on chromosomes 2BL and 3BL. Eleven were identified for FDK, notably on chromosomes 4BL, 3AL, 1BL, 5BL, and 5DL. Nine were identified for INC, notably on chromosomes 2BS, 2BL, 7BL, 5DL, 6AS, and 5DS. Twelve were identified for SEV, notably on chromosomes 3BL, 4AL, and 4BL. The naïve GS models significantly outperformed the GS+GWAS model for all traits, whereas MVGS models significantly outperformed the naïve GS models for all traits. Results from this study will facilitate the development of SRWW cultivars with improved FHB resistance.

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Section: Discussionmentioning

confidence: 99%

Genome‐wide analysis and prediction of Fusarium head blight resistance in soft red winter wheat

et al. 2020

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“…While Sumai 3 has been extensively used in North America, other regions are either relying on different sources of Fhb1 such as Shinchunaga in Japan and Norin 129 and Nigmai 9 in China or even dropping Fhb1 due to preferential selection for the stem rust gene Sr2 in International Maize and Wheat Improvement Center (CIMMYT) as both of these genes are linked in repulsion (Buerstmayr et al, 2019). Besides Sumai 3, novel sources of FHB resistance from several other Asian cultivars or landraces such as Chokwang conferring type II resistance from Korea and Wangshuibai, Nyu-Bai and Nobeokabozu and their descendants CM-82036 and Ning7840 from China are widely used in US wheat breeding programs (Yang et al, 2005;Buerstmayr et al, 2009;Buerstmayr et al, 2014;Li et al, 2016b;Buerstmayr et al, 2019). Before the introduction of Sumai 3, US wheat breeding programs primarily used type I resistance sourced from Brazilian donor cultivar Frontana with stable QTL reported on chromosomes 3AL and 5A (Steiner et al, 2004;Buerstmayr et al, 2009).…”

Section: Exotic and Alien Sources Of Fhb Resistancementioning

confidence: 99%

“…Although complete FHB resistance has not been obtained yet ( Steiner et al, 2017 ), identification and validation of major and minor effect QTLs and their introgression through diverse breeding methodologies including recently implemented methods such as marker-assisted and genomic selections are of paramount important. These methods have allowed gene pyramiding for durable resistance across wheat breeding programs ( Buerstmayr et al, 2009 ; Li et al, 2016b ; Shah et al, 2017 ; Zhao et al, 2018 ; Zhu et al, 2019 ). Meanwhile, the catastrophic epidemics in the 1990s resulted in the initiation of the US wheat and barley scab initiative (USWBSI; ) in 1997 ( McMullen et al, 2012 ).…”

Section: Epidemiology and Management Of Fhbmentioning

confidence: 99%

Fusarium Head Blight and Rust Diseases in Soft Red Winter Wheat in the Southeast United States: State of the Art, Challenges and Future Perspective for Breeding

et al. 2020

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Among the biotic constraints to wheat (Triticum aestivum L.) production, fusarium head blight (FHB), caused by Fusarium graminearum, leaf rust (LR), caused by Puccinia triticina, and stripe rust (SR) caused by Puccinia striiformis are problematic fungal diseases worldwide. Each can significantly reduce grain yield while FHB causes additional food and feed safety concerns due to mycotoxin contamination of grain. Genetic resistance is the most effective and sustainable approach for managing wheat diseases. In the past 20 years, over 500 quantitative trait loci (QTLs) conferring small to moderate effects for the different FHB resistance types have been reported in wheat. Similarly, 79 Lr-genes and more than 200 QTLs and 82 Yr-genes and 140 QTLs have been reported for seedling and adult plant LR and SR resistance, respectively. Most QTLs conferring rust resistance are race-specific generally conforming to a classical gene-for-gene interaction while resistance to FHB exhibits complex polygenic inheritance with several genetic loci contributing to one resistance type. Identification and deployment of additional genes/ QTLs associated with FHB and rust resistance can expedite wheat breeding through marker-assisted and/or genomic selection to combine small-effect QTL in the gene pool. LR disease has been present in the southeast United States for decades while SR and FHB have become increasingly problematic in the past 20 years, with FHB arguably due to increased corn acreage in the region. Currently, QTLs on chromosome 1B from

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“…Fhb2 from Sumai 3 ( Yang et al, 2006 ; Lu et al, 2010 ) and Fhb7 ( Guo et al, 2015 ) from Thinopyrum ponticum have also been used by resistance breeding programs. However, it is still a formidable challenge to transfer resistance genes into susceptible cultivars because major sources of resistance (such as Sumai 3 and Wangshuibai) also carry undesirable agronomic traits ( Dvorjak, 2014 ; Li et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Genetic Analysis of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line C615 Using Traditional and Conditional QTL Mapping

Cheng

Jiang³

et al. 2018

Front. Plant Sci.

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Fusarium head blight (FHB) is a destructive wheat disease present throughout the world, and host resistance is an effective and economical strategy used to control FHB. Lack of adequate resistance resource is still a main bottleneck for FHB genetics and wheat breeding research. The synthetic-derived bread wheat line C615, which does not carry the Fhb1 gene, is a promising source of FHB resistance for breeding. A population of 198 recombinant inbred lines (RILs) produced by crossing C615 with the susceptible cultivar Yangmai 13 was evaluated for FHB response using point and spray inoculations. As the disease phenotype is frequently complicated by other agronomic traits, we used both traditional and multivariate conditional QTL mapping approaches to investigate the genetic relationships (at the individual QTL level) between FHB resistance and plant height (PH), spike compactness (SC), and days to flowering (FD). A linkage map was constructed from 3,901 polymorphic SNP markers, which covered 2,549.2 cM. Traditional and conditional QTL mapping analyses found 13 and 22 QTL for FHB, respectively; 10 were identified by both methods. Among these 10, three QTL from C615 were detected in multiple years; these QTL were located on chromosomes 2AL, 2DS, and 2DL. Conditional QTL mapping analysis indicated that, at the QTL level, SC strongly influenced FHB in point inoculation; whereas PH and SC contributed more to FHB than did FD in spray inoculation. The three stable QTL (QFhbs-jaas.2AL, QFhbp-jaas.2DS, and QFhbp-jaas.2DL) for FHB were partly affected by or were independent of the three agronomic traits. The QTL detected in this study improve our understanding of the genetic relationships between FHB response and related traits at the QTL level and provide useful information for marker-assisted selection for the improvement of FHB resistance in breeding.

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Fusarium head blight resistance loci in a stratified population of wheat landraces and varieties

Cited by 20 publications

References 43 publications

Genome‐wide analysis and prediction of Fusarium head blight resistance in soft red winter wheat

Genome‐wide analysis and prediction of Fusarium head blight resistance in soft red winter wheat

Fusarium Head Blight and Rust Diseases in Soft Red Winter Wheat in the Southeast United States: State of the Art, Challenges and Future Perspective for Breeding

Genetic Analysis of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line C615 Using Traditional and Conditional QTL Mapping

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