Confirmation of the relationship between plant height and Fusarium head blight resistance in wheat (Triticum aestivum L.) by QTL meta-analysis

Mao, Shuang-Lin; Wei, Yuming; Cao, Wenguang; Lan, Xiujin; Ma, Yue; Chen, Zheng-Mao; Chen, Guoyue; Zheng, Yafeng

doi:10.1007/s10681-010-0128-9

Cited by 87 publications

(62 citation statements)

References 82 publications

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“…No correlation was found in populations A and B; the absence of the correlation can be attributed to the small effect size for the heading stage QTL in both populations. Conversely, for plant height, significant correlations between FHB index and plant height were found in all populations, ranging from -0.3 to -0.8, as indicated previously for wheat (29). Accordingly, QTL for plant height overlapped with FHB resistance QTL on chromosomes 2B, 6A, and 5R.…”

Section: Discussionsupporting

confidence: 77%

“…Although the first aspect might have physiological causes based on the DELLA protein which represses gibberellic acid (GA) responsive growth (43), the second aspect is due to direct or indirect effects of height differences per se (10). As explanations, very different effects have been considered, from microclimatic differences between tall and short plants in the field (51) over pleiotropic or morphological effects such as effects of peduncle length and compactness of head to increased cell density of the short plants promoting Fusarium spread in the host tissue (29). Obviously, both aspects are important for long-strawed triticale.…”

Section: Discussionmentioning

confidence: 99%

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Genetic Architecture of Fusarium Head Blight Resistance in Four Winter Triticale Populations

Kalih¹,

Maurer²,

Miedaner³

2015

Phytopathology®

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Fusarium head blight (FHB) is a devastating disease that causes significant reductions in yield and quality in wheat, rye, and triticale. In triticale, knowledge of the genetic architecture of FHB resistance is missing but essential due to modern breeding requirements. In our study, four doubled-haploid triticale populations (N=120 to 200) were evaluated for resistance to FHB caused by artificial inoculation with Fusarium culmorum in four environments. DArT markers were used to genotype triticale populations. Seventeen quantitative trait loci (QTL) for FHB resistance were detected across all populations; six of them were derived from rye genome and located on chromosomes 4R, 5R, and 7R, which are here reported for the first time. The total cross-validated ratio of the explained phenotypic variance for all detected QTL in each population was 41 to 68%. In all, 17 QTL for plant height and 18 QTL for heading stage were also detected across all populations; 3 and 5 of them, respectively, were overlapping with QTL for FHB. In conclusion, FHB resistance in triticale is caused by a multitude of QTL, and pyramiding them contributes to higher resistance.

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Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Genetic Architecture of Fusarium Head Blight Resistance in Four Winter Triticale Populations

Kalih¹,

Maurer²,

Miedaner³

2015

Phytopathology®

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“…The literature suggests that taller genotypes could maintain a cooler canopy in environments with increased temperatures [46]. A correlation between increased plant height and reduced FHB is reported in numerous studies [47][48][49]. In one study, the investigators showed that plants with Rht-B1b and Rht_D1b significantly decreased resistance to initial infection (Type 1) and Rht_B1b increased resistance to spread of the fungus [42].…”

Section: Discussionmentioning

confidence: 96%

GWAS for Fusarium Head Blight Related Traits in Winter Wheat (Triticum Aestivum L.) in an Artificially Warmed Treatment

Tessmann

Sanford

2018

Agronomy

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Global temperature increases will affect Fusarium head blight (FHB) levels in wheat (Triticum aestivum L.). A pressing question is whether current sources of resistance will be effective in a warmer environment. We evaluated phenotypic response to disease in 238 soft winter wheat breeding lines and cultivars grown in 2015-2016 and 2016-2017 under control and warmed (+3 • C) conditions. Warming was achieved with heating cables buried 3 cm in the rhizosphere. We measured heading date, plant height, yield, FHB rating, Fusarium damaged kernels (FDK), deoxynivalenol (DON), leaf blotch rating, powdery mildew rating and leaf rust rating. There were significant (p < 0.01) differences among genotypes for all traits measured. Genome-wide association study (GWAS) identified 19 and 10 significant SNPs in the control and warmed treatments, respectively. FDK and DON levels were often significantly (p < 0.05) higher in warmed than in control when we contrasted alleles at important quantitative trait locus (QTL) such as Fhb1, Rht-B1 and D1 and all vernalization and photoperiod loci. Increased rhizosphere temperature resulted in a significantly (p < 0.01) earlier heading date (~3.5 days) both years of the study. Rank correlation between warmed and control treatments was moderate (r = 0.56). Though encouraging, it indicates that selection for performance under warming should be carried out in a warmed environment.

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“…Among these, plant height and the extent of retained anthers after flowering play a major role (Buerstmayr et al 2012). Many studies report on the relationship between plant height and FHB resistance -in general, the shorter the plants the more severe are FHB epidemics (Mesterhazy 1995;Hilton et al 1999;Buerstmayr et al 2009;Mao et al 2010). The semi-dwarfing alleles Rht-D1b and Rht-B1b are widely deployed in wheat breeding and both alleles show similar effects on reducing plant height but differ in their impact on FHB resistance.…”

Section: Morphological and Phenological Traitsmentioning

confidence: 99%

Breeding strategies and advances in line selection for Fusarium head blight resistance in wheat

Steiner

Buerstmayr

Michel

et al. 2017

Trop. plant pathol.

149

155

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Fusarium head blight (FHB) is a fungal disease of worldwide importance to small grain cereals that may lead to severe losses in both yield and quality. The development of resistant varieties is the most effective approach for managing the disease. Genetic variation for FHB resistance is large, including 'exotic' and 'native' wheat germplasm. Methods for selecting improved lines include: 1) phenotypic selection with direct symptom evaluation; 2) marker-assisted selection for well-characterized QTL and 3) genomic selection employing genome-wide prediction models. Breeding programs need to find the optimal deployment of the complementary approaches according to their available facilities, resources and requirements. This review aims to summarize recent advances in FHB resistance breeding, thereby discussing the importance of morphological traits like the extent of retained anthers after flowering, its suitability for indirect selection and the pronounced association of the semi-dwarfing allele Rht-D1b with increased anther retention and FHB severity. Markerassisted selection is successfully applied to select for largeeffect QTL, especially for the most prominent resistance QTL Fhb1 in bread wheat, as well as in durum wheat as recently demonstrated. The resistance locus Fhb1 has been partly elucidated, a pore-forming toxin-like gene confers resistance against fungal spread. Genomic selection for FHB resistance appears promising especially for breeding programs deploying 'native' resistance sources with many small-effect QTL.

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Confirmation of the relationship between plant height and Fusarium head blight resistance in wheat (Triticum aestivum L.) by QTL meta-analysis

Cited by 87 publications

References 82 publications

Genetic Architecture of Fusarium Head Blight Resistance in Four Winter Triticale Populations

Genetic Architecture of Fusarium Head Blight Resistance in Four Winter Triticale Populations

GWAS for Fusarium Head Blight Related Traits in Winter Wheat (Triticum Aestivum L.) in an Artificially Warmed Treatment

Breeding strategies and advances in line selection for Fusarium head blight resistance in wheat

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