Durum Wheat Storage Protein Composition and the Role of LMW-GS in Quality

Giraldo, Patricia; Ruíz, Magdalena; Ibba, María Itria; Morris, Craig F.; Labuschagne, Maryke; Igrejas, Gilberto

doi:10.1007/978-3-030-34163-3_5

Cited by 6 publications

(11 citation statements)

References 194 publications

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“…The analyses performed in the present study revealed the structure of the winter durum wheat collection. The most frequent allele was Glu-A1c , which is a common feature in many durum wheat collections [ 32 , 40 , 41 ]; here, a definite positive effect of the Glu-A1a allele and a negative effect of Glu-A1c on the gluten index were shown, which is visible by the shape of the corresponding genotype clouds and the gluten index vector in the PCA biplots ( Figure 4 ) and is consistent with other communications [ 13 , 14 , 42 ]. In the studied collection, accessions that were classified as the HQ category had, on average, a lower gluten index value, to which corresponds Glu-A1c , which could explain its prevalence in our collection.…”

Section: Discussionsupporting

confidence: 90%

“…In most durum wheat studies, the Glu-B1b (Bx7 + By8) and Glu-B1d (Bx6 + By8) alleles had a positive effect on gluten strength [ 14 ]. In our study, Glu-B1f (Bx13 + By16) and Glu-B1al (Bx7 OE + By8) had a positive effect on protein and gluten content (in 2020–2021 statistically significant; in 2019–2020, only the general trend of positive influence is visible from the genotype clouds in the PCA biplot, Figure 4 ).…”

Section: Discussionmentioning

confidence: 99%

“…Among the Glu-B1 allelic variants, alleles Glu-B1b (subunits Bx7 + By8), Glu-B1d (subunits Bx6 + By8, (Bx6 having a stronger effect on gluten strength than By8 [ 13 ])), Glu-B1bc (subunits Bx6 + By17) and h (subunits Bx14 + By15) in contrast to allele Glu-B1a (subunit Bx7). However, alleles such as Glu-B1f (subunits Bx13 + By16) and Glu-B1e (subunits Bx20 + By20) in different studies have multidirectional effects on gluten, which may be due to genetic background and cultivation conditions (see review [ 14 ]). The described correlations are relevant for spring durum wheat and may have other directions in winter durum wheat germplasm.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Allelic Variation of Glu-A1 and Glu-B1 Genes in Winter Durum Wheat and Its Effect on Quality Parameters

Kroupina

Yanovsky

Korobkova

et al. 2023

Foods

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Winter durum wheat is a relatively young crop that is highly adaptable due to its winter type of growth habit. The priority of breeding and genetic improvement of winter durum wheat is to improve grain quality and pasta quality, largely determined by the glutenin storage proteins. In the present study, a collection of 76 accessions of winter durum wheat from P.P. Lukyanenko National Grain Centre was studied. The allelic state of high-molecular-weight glutenin genes, Glu-A1 and Glu-B1, using PCR markers and SDS-PAGE was identified and grain and pasta quality traits were assessed in a two-year field experiment. The positive effect of the Glu-A1a allele and a negative effect of Glu-A1c on the gluten index were shown. It was found that Glu-B1al and Glu-B1f have a positive effect on the quality and quantity of protein and gluten, while the Glu-A1c + Glu-B1al genotypes were closest to the high-quality category in protein-associated quality traits.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Allelic Variation of Glu-A1 and Glu-B1 Genes in Winter Durum Wheat and Its Effect on Quality Parameters

Kroupina

Yanovsky

Korobkova

et al. 2023

Foods

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“…Besides, two novel alleles for Glu‐A3 and six for Glu‐B3 were identified in the current study. Finally, the LMW‐2 pattern was associated with higher gluten quality, as mentioned in the literature (see Giraldo et al., 2020).…”

Section: Discussionsupporting

confidence: 60%

Response to heat stress and glutenins allelic variation effects on quality traits in durum wheat

Tabbita,

Ammar,

Ibba

et al. 2024

J Agronomy Crop Science

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In the context of climate change, high temperature is one of the main abiotic stresses hampering durum wheat production. Through the characterization of an international panel of 271 genotypes, this study investigates the effects of heat stress on quality traits and identifies which glutenins (Glu‐1, Glu‐2 and Glu‐3 loci) alleles are the most important to obtain high gluten strength under optimal and high temperature conditions. In parallel with the wide variability observed in the panel, the genotype and environmental effects, including their interaction, showed highly significant effect on test weight, thousand kernel weight, grain protein content (GPC), sodium dodecyl sulphate sedimentation volume (SDSS) and SDSS index. Only one genotype maintained test weight and thousand kernel weight under heat‐stress conditions whereas for GPC, SDSS and SDSS index, most genotypes increased values. All Glu loci had significant effects on grain protein content (with the exception of Glu‐B2), SDSS and SDSS Index. None of the Glu loci interacted with the environment or years under study. Among the identified alleles, Glu‐A1b, Glu‐B1an, Glu‐B1a, Glu‐B2a, Glu‐A3a.x, Glu‐A3d, Glu‐B3a and Glu‐B3ax (including the LMW‐2 pattern) were associated with high values for SDSS and SDSS Index. Genotypes identified in this study, with good performances under optimal and high temperature growing conditions, could be useful for breeding programs. The non‐interaction of the Glu loci with the environment facilitates the introgression of desired alleles regardless of high growing temperatures.

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“…Rust and powdery mildew resistance genes are clustered between the Sec-1 and Sec-N secalin genes [ 30 , 36 ]. Thus, in the future, marker-assisted selection and chromosomal engineering may help to reduce the dose of rye 1RS translocation in durum wheat by “preserving” rye chromatin fragments carrying genes for resistance to diseases and water stress, and “returning” the wheat gene for low-molecular-weight glutenins Glu-3 , having a decisive influence on the quality of gluten [ 66 , 67 ]. Alternatively, it is also possible to use 1RS translocations with deletions for secalin genes [ 42 ].…”

Section: Discussionmentioning

confidence: 99%

Permanent Spreading of 1RS.1AL and 1RS.1BL Translocations in Modern Wheat Breeding

Korobkova

Bespalova

Yanovsky

et al. 2023

Plants

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Wheat-rye translocations 1RS.1BL and 1RS.1AL are used in bread wheat breeding worldwide because a short arm of rye chromosome 1 (1RS) when introgressed into the wheat genome confers resistance to diseases, pests and better performance under drought-stress conditions. However, in durum wheat genotypes, these translocations occur only in experimental lines, although their advantages could enhance the potential of this crop. P.P. Lukyanenko National Grain Centre (NGC) has successfully developed commercially competitive cultivars of bread and durum wheat demanded by many agricultural producers in the South of Russia for decades. Here, 94 accessions of bread and 343 accessions of durum wheat, representing lines and cultivars from collection, competitive variety trials and breeding nursery developed at NGC were screened for 1RS using PCR markers and genomic in situ hybridization. The 1RS.1BL and 1RS.1AL translocations were detected in 38 and 6 bread wheat accessions, respectively. None of the durum wheat accessions showed translocation, despite the fact that some of them had 1RS.1BL donors in their pedigree. The absence of translocations in the studied durum wheat germplasm can be caused by the negative selection of 1RS carriers at different stages of the breeding process due to low quality and difficulties in transferring rye chromatin through wheat gametes.

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Durum Wheat Storage Protein Composition and the Role of LMW-GS in Quality

Cited by 6 publications

References 194 publications

Allelic Variation of Glu-A1 and Glu-B1 Genes in Winter Durum Wheat and Its Effect on Quality Parameters

Allelic Variation of Glu-A1 and Glu-B1 Genes in Winter Durum Wheat and Its Effect on Quality Parameters

Response to heat stress and glutenins allelic variation effects on quality traits in durum wheat

Permanent Spreading of 1RS.1AL and 1RS.1BL Translocations in Modern Wheat Breeding

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