Pasta-Making Quality QTLome From Mediterranean Durum Wheat Landraces

Roselló, Martina; Royo, C.; Álvaro, Fanny; Villegas, D.; Nazco, Ruyman; Soriano, José Miguel

doi:10.3389/fpls.2018.01512

Cited by 27 publications

(18 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The relationship between durum wheat gluten strength and HMW- glutenins is well known and controlled by major loci [51]. While we did not observed MTAs for the Gli-B1 locus, consistent with the previous selection carried out for the favourable γ-gliadin 42 allele in this elite material, we could detect MTAs for the Glu-B1 [78, 87, 88] and Glu-A1 [88, 89] loci (markers DArT1744 and DArT24559 ). By blasting both markers, we have precisely mapped the Glu-B1 and Glu-A1 loci on the wheat reference genome (IWGSC 2018) and proposed the corresponding candidate genes among the gene models annotated as HMW subunits (Table 4).…”

Section: Discussionsupporting

confidence: 89%

“…Studies in durum and bread wheat, carried out in a wide range of environments and conditions, placed markers in association with this trait in several other chromosomes [35, 75, 84]. A recent study in durum wheat landraces, performed in Northern Spain under rainfed conditions [87] found significant DArT markers associated with SW in several chromosomes, including 3A (0.07–0.09% of variation), but in a different position.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Genetic dissection of agronomic and quality traits based on association mapping and genomic selection approaches in durum wheat grown in Southern Spain

Mérida-García

Liu

et al. 2019

PLoS ONE

View full text Add to dashboard Cite

Climatic conditions affect the growth, development and final crop production. As wheat is of paramount importance as a staple crop in the human diet, there is a growing need to study its abiotic stress adaptation through the performance of key breeding traits. New and complementary approaches, such as genome-wide association studies (GWAS) and genomic selection (GS), are used for the dissection of different agronomic traits. The present study focused on the dissection of agronomic and quality traits of interest (initial agronomic score, yield, gluten index, sedimentation index, specific weight, whole grain protein and yellow colour) assessed in a panel of 179 durum wheat lines ( Triticum durum Desf.), grown under rainfed conditions in different Mediterranean environments in Southern Spain (Andalusia). The findings show a total of 37 marker-trait associations (MTAs) which affect phenotype expression for three quality traits (specific weight, gluten and sedimentation indexes). MTAs could be mapped on the A and B durum wheat subgenomes (on chromosomes 1A, 1B, 2A, 2B and 3A) through the recently available bread wheat reference assembly (IWGSC RefSeqv1). Two of the MTAs found for quality traits (gluten index and SDS) corresponded to the known Glu-B1 and Glu-A1 loci, for which candidate genes corresponding to high molecular weight glutenin subunits could be located. The GS prediction ability values obtained from the breeding materials analyzed showed promising results for traits as grain protein content, sedimentation and gluten indexes, which can be used in plant breeding programs.

show abstract

Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Genetic dissection of agronomic and quality traits based on association mapping and genomic selection approaches in durum wheat grown in Southern Spain

Mérida-García

Liu

et al. 2019

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Although several reports of SNP markers, associated to QTL for carotenoid pigments, have been published to date ( Table 1 ), they mostly relied on linkage mapping and biparental RIL populations. Only four studies were deeply focused on SSR and SNP-based association mapping in durum wheat (Reimer et al, 2008; Colasuonno et al, 2017a; N’Diaye et al, 2017; Rosello et al, 2018), and only one considered haplotypes instead of single bi-allelic markers (N’Diaye et al, 2018).…”

Section: Qtl Detection In Durum Wheatmentioning

confidence: 99%

Carotenoid Pigment Content in Durum Wheat (Triticum turgidum L. var durum): An Overview of Quantitative Trait Loci and Candidate Genes

et al. 2019

View full text Add to dashboard Cite

Carotenoid pigment content is an important quality trait as it confers a natural bright yellow color to pasta preferred by consumers (whiteness vs. yellowness) and nutrients, such as provitamin A and antioxidants, essential for human diet. The main goal of the present review is to summarize the knowledge about the genetic regulation of the accumulation of pigment content in durum wheat grain and describe the genetic improvements obtained by using breeding approaches in the last two decades. Although carotenoid pigment content is a quantitative character regulated by various genes with additive effects, its high heritability has facilitated the durum breeding progress for this quality trait. Mapping research for yellow index and yellow pigment content has identified quantitative trait loci (QTL) on all wheat chromosomes. The major QTL, accounting for up to 60%, were mapped on 7L homoeologous chromosome arms, and they are explained by allelic variations of the phytoene synthase (PSY) genes. Minor QTL were detected on all chromosomes and associated to significant molecular markers, indicating the complexity of the trait. Despite there being currently a better knowledge of the mechanisms controlling carotenoid content and composition, there are gaps that require further investigation and bridging to better understand the genetic architecture of this important trait. The development and the utilization of molecular markers in marker-assisted selection (MAS) programs for improving grain quality have been reviewed and discussed.

show abstract

“…There have been no reports for QTL on the short arm of chromosome 2B close to QGlu.spa-2B.1 (peak SNP: RAC875_c38003_164). A QTL on the short arm of chromosome 3A reported by Roselló et al (2018) is about 32 cM away from QGlu.spa-3A.1 (peak SNP: RAC875_c64107_404) identified in this study, indicating that these two QTL might be different and QGlu.spa-3A.1 was a novel QTL. In addition, another QTL QGlu.spa-3A.2 (peak SNP: Excalibur_c14216_692 and wsnp_Ex_rep_c69864_68824236) on chromosome 3A was likely a novel QTL for SV.…”

Section: Comparison With Previously Reported Quantitative Trait Locimentioning

confidence: 55%

“…Likewise, QTL QGlu.spa-1B.2 (peak SNP: Excalibur_c50079_420) on the long arm of chromosome 1B was 6 cM away from the QTL interval (barc181-psr162) identified by Zhang et al (2008) and Conti et al (2011) in durum wheat, and 0.5 cM apart from the QTL (peak SNP: CAP8_c818_370) identified by Jernigan et al (2018) in bread wheat. Of the two QTL reported by Roselló et al (2018), QTL associated with marker wPt-1140 was located within QGlu.spa-2B.2 (peak SNP: Kukri_c25868_56) and another QTL associated with marker wPt-6894 within QGlu.spa-2B.3 (peak SNP: Excalibur_c91034_141). There have been no reports for QTL on the short arm of chromosome 2B close to QGlu.spa-2B.1 (peak SNP: RAC875_c38003_164).…”

Section: Comparison With Previously Reported Quantitative Trait Locimentioning

confidence: 96%

High Density Mapping of Quantitative Trait Loci Conferring Gluten Strength in Canadian Durum Wheat

Ruan

Knox

et al. 2020

Front. Plant Sci.

View full text Add to dashboard Cite

Gluten strength is one of the factors that determine the end-use quality of durum wheat and is an important breeding target for this crop. To characterize the quantitative trait loci (QTL) controlling gluten strength in Canadian durum wheat cultivars, a population of 162 doubled haploid (DH) lines segregating for gluten strength and derived from cv. Pelissier × cv. Strongfield was used in this study. The DH lines, parents, and controls were grown in 3 years and two seeding dates in each year and gluten strength of grain samples was measured by sodium dodecyl sulfate (SDS)-sedimentation volume (SV). With a genetic map created by genotyping the DH lines using the Illumina Infinium iSelect Wheat 90K SNP (single nucleotide polymorphism) chip, QTL contributing to gluten strength were detected on chromosome 1A, 1B, 2B, and 3A. Two major and stable QTL detected on chromosome 1A (QGlu.spa-1A) and 1B (QGlu.spa-1B.1) explaining 13.7-18.7% and 25.4-40.1% of the gluten strength variability respectively were consistently detected over 3 years, with the trait increasing alleles derived from Strongfield. Putative candidate genes underlying the major QTL were identified. Two novel minor QTL (QGlu.spa-3A.1 and QGlu.spa-3A.2) with the trait increasing allele derived from Pelissier were mapped on chromosome 3A explaining up to 8.9% of the phenotypic variance; another three minor QTL (QGlu.spa-2B.1, QGlu.spa-2B.2, and QGlu.spa-2B.3) located on chromosome 2B explained up to 8.7% of the phenotypic variance with the trait increasing allele derived from Pelissier. QGlu.spa-2B.1 is a new QTL and has not been reported in the literature. Multi-environment analysis revealed genetic (QTL) × environment interaction due to the difference of effect in magnitude rather than the direction of the QTL. Eleven pairs of digenic epistatic QTL were identified, with an epistatic effect between the two major QTL of QGlu.spa-1A and QGlu.spa-1B.1 detected in four out of six environments. The peak SNPs and SNPs flanking the QTL interval of QGlu.spa-1A and QGlu.spa-1B.1 were converted to Kompetitive Allele Specific PCR (KASP) markers, which can be deployed in marker-assisted breeding to increase the efficiency and accuracy of phenotypic selection for gluten strength in durum wheat. The QTL that were expressed consistently across

show abstract

Pasta-Making Quality QTLome From Mediterranean Durum Wheat Landraces

Cited by 27 publications

References 71 publications

Genetic dissection of agronomic and quality traits based on association mapping and genomic selection approaches in durum wheat grown in Southern Spain

Genetic dissection of agronomic and quality traits based on association mapping and genomic selection approaches in durum wheat grown in Southern Spain

Carotenoid Pigment Content in Durum Wheat (Triticum turgidum L. var durum): An Overview of Quantitative Trait Loci and Candidate Genes

High Density Mapping of Quantitative Trait Loci Conferring Gluten Strength in Canadian Durum Wheat

Contact Info

Product

Resources

About