Contribution of Genetic Resources to Grain Storage Protein Composition and Wheat Quality

Branlard, Gérard; Giraldo, Patricia; He, Zhonghu; Igrejas, Gilberto; Ikeda, Tatsuya; Janni, Michela; Labuschagne, Maryke; Wang, Daowen; Wentzel, B.; Zhang, Kunpu

doi:10.1007/978-3-030-34163-3_4

Cited by 5 publications

(3 citation statements)

References 116 publications

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“…Durum wheat is the tenth most valuable crop on a global scale. Most of the allelic variation of genes found in original wild relatives, which has gradually been lost through domestication and breeding, can be recovered only by going back to landraces [ 46 ].…”

Section: Discussionmentioning

confidence: 99%

A comparison of phenotypic variation in Triticum durum Desf. genotypes deposited in gene banks based on the shape and color descriptors of kernels in a digital image analysis

et al. 2022

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Durum wheat is the tenth most valuable crop on a global scale. The aim of this study was to compare the phenotypic variation of T. durum accessions of different origin with contemporary spring cultivars of this cereal species. One hundred and two accessions and 12 contemporary cultivars of Triticum durum Desf. as well as Kamut® wheat (T. turanicum), a Triticum species closely related to T. durum, were analyzed. The aim of this study was to describe the degree of variation in the phenotypic traits of grain and selected traits associated with technological quality. The examined genotypes were characterized by considerable phenotypic variation, and they can be a valuable source of material for genetic recombination in durum wheat breeding. The analyzed accessions were characterized by a higher average content of protein (16.48 vs. 14.56%) and wet gluten (38.04 vs. 32.07%), higher Zeleny sedimentation values (69.7 vs. 60.4ml), and higher flour strength (W index values of 404.64 vs. 353.47) than the reference cultivars. The kernels of the evaluated accessions and cultivars did not differ significantly in average crease depth, but significant differences were observed in the values of descriptors directly linked with kernel size, especially kernel image area and minimal Feret diameter. The traits responsible for the processing suitability of grain were more strongly correlated with color descriptors than shape descriptors, which suggests that color parameters can be used to select high-quality breeding material. The analyzed accessions have two major weaknesses, namely relatively low yields (22.6 dt ha-1 on average) and undesirable grain color, indicative of low carotenoid concentration. The accessions deposited in gene banks do not meet the relevant agronomic requirements. However, both grain yield and carotenoid concentration are polygenic traits which can be improved if desirable combinations of QTLs are assembled in breeding lines and cultivars.

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Section: Discussionmentioning

confidence: 99%

A comparison of phenotypic variation in Triticum durum Desf. genotypes deposited in gene banks based on the shape and color descriptors of kernels in a digital image analysis

et al. 2022

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“…To broaden the wheat quality genetic basis, allelic variations of gluten proteins from wheat-wild relative species are being studied. 30 Some novel HMW-GSs were found to have the ability to improve wheat quality. 31 For example, the Mx subunit transferred from the 1M b chromosome of Ae.…”

Section: Rp-hplc and Se-hplc Separation Of Gluten Proteinsmentioning

confidence: 99%

Disomic 1M (1B) Triticum aestivum–Aegilops comosa Substitution Line with Favorable Protein Properties

Zuo

Jing

et al. 2023

J. Agric. Food Chem.

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Aegilops comosa (2n = 2x = 14, MM) contains many excellent genes/traits for wheat breeding. Wheat–Ae. comosa introgression lines have potential value in the genetic improvement of wheat quality. A disomic 1M (1B) Triticum aestivum–Ae. comosa substitution line NAL-35 was identified by fluorescence in situ hybridization and genomic in situ hybridization analysis from a hybridization cross between a disomic 1M (1D) substitution line NB 4-8-5-9 with CS N1BT1D. The observation of pollen mother cells showed that NAL-35 had normal chromosome pairing, suggesting that NAL-35 could be used for the quality test. NAL-35 with alien Mx and My subunits showed positive effects on some protein-related parameters including high protein content and high ratios of high-molecular-weight glutenin subunits (HMW-GSs)/glutenin and HMW-GS/low-molecular-weight glutenin subunits. The changes in gluten composition improved the rheological properties of the dough of NAL-35, resulting in a tighter and more uniform microstructure. NAL-35 is a potential material for wheat quality improvement that transferred quality-related genes from Ae. comosa.

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“…Gliadins are factors affecting dough extensibility. Since the 1970s, the influence of these significant gluten components on the baking process of bread wheat has received much attention [2,3]. The Glu-1 loci on the long arms of wheat group 1 (1A, 1B, 1D) chromosomes encode HMW-GS and are named Glu-A1, Glu-B1, and Glu-D1 based on their chromosome names.…”

Section: Introductionmentioning

confidence: 99%

Allelic Variation of High-Molecular-Weight Glutenin Genes in Triticum Species and Triticale (× Triticosecale Wittmack)

Spetsov,

Daskalova

2024

OBM Genet

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High-molecular-weight glutenin subunits (HMW-GS) encoded by alleles at the Glu-A1, Glu-B1, and Glu-D1 loci confer unique bread-making properties of common wheat (Triticum aestivum L.). The identification of HMW-GS is the prerequisite for pyramiding high-quality glutenin genes. The present review is designed to list all published HMW-GS alleles in Triticum species and triticale (A- and B genomes), focusing on methods for their identification. T. monococcum is characterized by 37 alleles at the Glu-1 locus versus four alleles in T. thaoudar and 39 in T. urartu. In total, 80 alleles at Glu-A1 of diploid Triticum species and about 42 alleles found in polyploid wheat landraces and varieties (4x and 6x), including triticale, were listed. Allelic variation at the Glu-B1 locus is divided into 3 groups: a – z, aa – az, and ba – ct, comprising 121 alleles, of which 26 subunits have unspecified alleles. At least 51 allelic variants at locus Glu-D1 of Triticum species were indicated, along with carriers of the species level. In addition, subunit-specific genetic loci have been tagged, facilitating molecular marker development of high-gluten wheat cultivars through marker-assisted breeding.

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Contribution of Genetic Resources to Grain Storage Protein Composition and Wheat Quality

Cited by 5 publications

References 116 publications

A comparison of phenotypic variation in Triticum durum Desf. genotypes deposited in gene banks based on the shape and color descriptors of kernels in a digital image analysis

A comparison of phenotypic variation in Triticum durum Desf. genotypes deposited in gene banks based on the shape and color descriptors of kernels in a digital image analysis

Disomic 1M (1B) Triticum aestivum–Aegilops comosa Substitution Line with Favorable Protein Properties

Allelic Variation of High-Molecular-Weight Glutenin Genes in <i>Triticum</i> Species and Triticale (× <i>Triticosecale</i> Wittmack)

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