Location of genes for common bunt resistance in the European winter wheat cv. Trintella

Dumalasová, V.; Simmonds, James; Bartoš, Pavel; Snape, J. W.

doi:10.1007/s10681-012-0671-7

Cited by 21 publications

(26 citation statements)

References 13 publications

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“…The two studies also used different inoculum sources: the Blizzard study used the common bunt races T-19 or T-19 and L-16, while this study used the composite dwarf bunt races. Additional common bunt HPR QTL have been reported from other resistance sources, including: 7A (Fofana et al 2008; Dumalasová et al 2012), 7B (Dumalasová et al 2012; Knox et al 2013), 5B (Dumalasová et al 2012; Singh et al 2016), 4D (Singh et al 2016), and 6D (Menzies, et al 2006; Singh et al 2016), while none of these HPR QTL were detected in the present study. Singh et al (2016) found that the common bunt HPR QTL co-localized with other beneficial traits including height and rust resistance.…”

Section: Discussionmentioning

confidence: 91%

“…One QTL on 1BS for common bunt was reported in two spring wheats, AC Domain (Fofana et al 2008) and Carberry (Singh et al 2016), a US winter wheat Blizzard (Wang et al 2009), and a European winter wheat Trintella (Dumalasová et al 2012). Additional QTL were reported on 7A (Fofana et al 2008; Dumalasová et al 2012), 7B (Dumalasová et al 2012; Knox et al 2013), 5B (Dumalasová et al 2012; Singh et al 2016), 4D (Singh et al 2016), 6D (Menzies, et al 2006; Singh et al 2016), and 7D (Singh et al 2016). Markers for Bt10 on 6D have also been developed (Laroche et al 2000; Menzies et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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A novel QTL associated with dwarf bunt resistance in Idaho 444 winter wheat

et al. 2016

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Key message A novel QTL, Q.DB.ui-7DS, and the PCR-based markers identified in the current study will accelerate variety development for resistance to dwarf and common bunt of wheat. AbstractDwarf bunt [Tilletia controversa J.G. Kühn [as ‘contraversa’], in Rabenhorst, Hedwigia 13: 188 (1874)] is a destructive disease of wheat (Triticum aestivum L.) that reduces grain yield and quality. A number of distinct genes conferring resistance to dwarf bunt have been used by breeding programs for nearly 100 years. However, few markers were identified that can be used in selection of dwarf bunt resistance. A recombinant inbred line (RIL) population derived from the bunt-resistant germplasm, Idaho 444 (IDO444), and the susceptible cultivar, Rio Blanco, was evaluated for phenotypic reaction to dwarf bunt inoculation in four trials in two locations (USU and USDA) over 3 years. The population was genotyped with the Diversity Arrays Technology (DArT) and the Illumina Infinium 9K iSelect marker platforms. A total of three QTL were detected, and resistant alleles were from IDO444. QTL Q.DB.ui-7DS on 7DS was determined based on the location of a DArT marker wPt-2565 (X116197), which was consistently detected and explained 32 to 56 % of phenotypic variation among the four trials. QTL Q.DB.ui-1A on 1A was detected in three Utah State University (USU) trials and explained 11–15 % of phenotypic variation. QTL Q.DB.ui-2B on 2B was detected in two USU and one United States Department of Agriculture (USDA) trials and explained up to 6 % of phenotypic variation. Two PCR-based markers were developed based on the sequence of wPt-2565 and validated in the RIL population and used in genotyping of dwarf bunt differential lines, known resistance sources, and resistant cultivars.

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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

A novel QTL associated with dwarf bunt resistance in Idaho 444 winter wheat

et al. 2016

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“…7 ). Based on the results of association mapping, differentials lines and gene annotations, we expected that the significant SNPs located on chromosome 1B could be associated with some genes such as; Bt1 , Bt6 , Bt12 or other unknown genes [ 26 , 27 ]. Bt4 could be located on this chromosome due to the high linkage between it and Bt6 gene [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

“…The significant SNPs on chromosomes 2B and 2D could be associated with Bt1 and Bt11 which have been mapped to chromosomes 2B and 2D, respectively [ 4 , 28 ]. Some QTLs were reported to have an association with common bunt resistance on chromosome 1A [ 27 , 29 ], but no genes were mapped on this chromosome. The GWAS was performed for other traits (plant height and days to heading).…”

Section: Discussionmentioning

confidence: 99%

Genetic architecture of common bunt resistance in winter wheat using genome-wide association study

et al. 2018

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BackgroundCommon bunt (caused by Tilletia caries and T. foetida) has been considered as a major disease in wheat (Triticum aestivum) following rust (Puccinia spp.) in the Near East and is economically important in the Great Plains, USA. Despite the fact that it can be easily controlled using seed treatment with fungicides, fungicides often cannot or may not be used in organic and low-input fields. Planting common bunt resistant genotypes is an alternative.ResultsTo identify resistance genes for Nebraska common bunt race, the global set of differential lines were inoculated. Nine differential lines carrying nine different genes had 0% infected heads and seemed to be resistant to Nebraska race. To understand the genetic basis of the resistance in Nebraska winter wheat, a set of 330 genotypes were inoculated and evaluated under field conditions in two locations. Out of the 330 genotypes, 62 genotypes had different degrees of resistance. Moreover, plant height, chlorophyll content and days to heading were scored in both locations. Using genome-wide association study, 123 SNPs located on fourteen chromosomes were identified to be associated with the resistance. Different degrees of linkage disequilibrium was found among the significant SNPs and they explained 1.00 to 9.00% of the phenotypic variance, indicating the presence of many minor QTLs controlling the resistance.ConclusionBased on the chromosomal location of some of the known genes, some SNPs may be associated with Bt1, Bt6, Bt11 and Bt12 resistance loci. The remaining significant SNPs may be novel alleles that were not reported previously. Common bunt resistance seems to be an independent trait as no correlation was found between a number of infected heads and chlorophyll content, days to heading or plant height.Electronic supplementary materialThe online version of this article (10.1186/s12870-018-1435-x) contains supplementary material, which is available to authorized users.

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“…Six QTLs associated with resistance to common bunt have been reported in a DH population derived from a cross between Carberry and AC Cadillac, which includes a QTL on 4B that explained 7.6% of the phenotypic variance (Singh et al, 2016a). Four QTLs associated with resistance to common bunt have been reported in a DH population derived from a cross between Trintella and Pikoon, which includes a QTL on chromosome 7A (Dumalasová et al, 2012). In a Canadian spring wheat DH population derived from a cross between RL 4452 and AC Domain, two QTLs for common bunt were also reported on chromosomes 1B and 7A (Fofana et al, 2008).…”

Section: Marker-trait Association Analysismentioning

confidence: 99%

Population Structure and Genomewide Association Analysis of Resistance to Disease and Insensitivity to Ptr Toxins in Canadian Spring Wheat Using 90K SNP Array

et al. 2017

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Leaf rust, yellow (stripe) rust, common bunt, and tan spot are economically significant diseases affecting wheat (Triticum aestivum L.) production in Canada. In this study, we investigated the genetic relationship and population structure of 81 Canadian western spring wheat cultivars released primarily between 1963 and 2011 and identified genomic regions associated with resistance to the above four diseases and insensitivity to three Pyrenophora tritici‐repentis (Ptr) toxins (Ptr ToxA, Ptr ToxB and Ptr ToxC). The cultivars were evaluated for field reaction to the four diseases and for reaction to the three Ptr toxins in a greenhouse and were genotyped with a subset of 19,919 of the wheat 90K single‐nucleotide polymorphic array and 11 gene‐specific markers. There were large genetic differences among pairwise comparisons of cultivars, except six pairs that showed <0.05 genetic distance. The cultivars exhibited clear population structure, generally in agreement with the major western Canada spring wheat classes. Using a threshold of p ≤ 5 × 10−5 and a weighted mixed linear model, we identified 94 markers from seven chromosomes associated with all traits except Ptr ToxC. Two major‐effect genomic regions on chromosomes 5B (71–74 cM) and 1A (52–53 cM) were associated with Ptr ToxA, of which the former coincided with the Tsn1 gene. For Ptr ToxB, we identified two other major‐effect regions on chromosomes 2B and 5B. The genomic regions associated with common bunt mapped on 2B, 4B, and 7A, whereas those associated with leaf rust mapped at two positions on 2B. We were only able to uncover a single marker‐trait association for tan spot on 7B and for yellow rust on 2A.

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Location of genes for common bunt resistance in the European winter wheat cv. Trintella

Cited by 21 publications

References 13 publications

A novel QTL associated with dwarf bunt resistance in Idaho 444 winter wheat

A novel QTL associated with dwarf bunt resistance in Idaho 444 winter wheat

Genetic architecture of common bunt resistance in winter wheat using genome-wide association study

Population Structure and Genomewide Association Analysis of Resistance to Disease and Insensitivity to Ptr Toxins in Canadian Spring Wheat Using 90K SNP Array

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