Potential Use of Wild Einkorn Wheat for Wheat Grain Quality Improvement: Evaluation and Characterization of Glu-1, Wx and Ha Loci

Huertas-García, Ana Belén; Castellano, Laura M.; Guzmán, Carlos; Álvarez, José Ramón Guzmán

doi:10.3390/agronomy11050816

Cited by 6 publications

(6 citation statements)

References 74 publications

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“…Wild emmer wheat, T. dicoccoides (825 accessions), showed wide variation and the highest concentrations of micronutrients, significantly exceeding those in cultivated wheat. The results indicated that wild emmer is an important genetic resource for improving grain quality and increasing the contents of mineral nutrients in modern cultivated wheats [253]. Compared with cultivated wheat, wild emmer wheat accumulates higher contents of iron and zinc [85,254], as do T. boeoticum and T. monococcum [255,256].…”

Section: Improved Nutritional Qualitymentioning

confidence: 99%

Introducing Beneficial Alleles from Plant Genetic Resources into the Wheat Germplasm

Sharma¹,

Schulthess

Bassi³

et al. 2021

Biology

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Wheat (Triticum sp.) is one of the world’s most important crops, and constantly increasing its productivity is crucial to the livelihoods of millions of people. However, more than a century of intensive breeding and selection processes have eroded genetic diversity in the elite genepool, making new genetic gains difficult. Therefore, the need to introduce novel genetic diversity into modern wheat has become increasingly important. This review provides an overview of the plant genetic resources (PGR) available for wheat. We describe the most important taxonomic and phylogenetic relationships of these PGR to guide their use in wheat breeding. In addition, we present the status of the use of some of these resources in wheat breeding programs. We propose several introgression schemes that allow the transfer of qualitative and quantitative alleles from PGR into elite germplasm. With this in mind, we propose the use of a stage-gate approach to align the pre-breeding with main breeding programs to meet the needs of breeders, farmers, and end-users. Overall, this review provides a clear starting point to guide the introgression of useful alleles over the next decade.

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Section: Improved Nutritional Qualitymentioning

confidence: 99%

Introducing Beneficial Alleles from Plant Genetic Resources into the Wheat Germplasm

Sharma¹,

Schulthess

Bassi³

et al. 2021

Biology

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“…aegilopoides differed from those of T. urartu (Table 1) [19]. Seven y-type subunits in this species, named with Roman numbers, were additionally detected [15]. Wild diploid wheat exhibited active Ay-subunits, and consequently, they could be good sources for increasing the number of alleles encoding active subunits at the Glu-A1 locus.…”

Section: Diploid Triticum Speciesmentioning

confidence: 80%

“…Researchers found three allelic variants (alleles a, b and c) [11], and seven subunits, three for Glu-A1x, and four for Glu-A1y [12]. A wider variation for the Glu-A1x was detected [13][14][15]. The spectrum of A1y-subunits was extended by 1Ay8* and 1Ay12* [16] and 1Ay8.2 and 1Ay8.3 [17,18].…”

Section: Diploid Triticum Speciesmentioning

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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“…High diversity of puroindoline genes was found in wild species i.e., wild einkorn. The introgression of diverse Pin-genes from wild species to common wheat could be useful for end-use quality (Huertas-García, Castellano, Guzmán, & Alvarez, 2021).…”

Section: Fig 1 Prevalence Of Different Puroindoline Genes Among Diverse Genotypesmentioning

confidence: 99%

Prevalence of Puroindoline Genes and Their Impact on Quality Traits in A Diverse Germplasm of Wheat Genotypes

Khurshid

Ahmad

2021

Agrivita.J.Agr.Sci

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Grain hardness is an imperative attribute that determines the end-use quality of wheat. Variation in grain hardness is usually controlled by Puroindoline (pin-a and pin-b) genes located on the 5D chromosome.The study was aimed to reveal different mutations in Puroindoline genes utilizing the STS-marker approach and their association with important quality attributes in 100 hexaploid wheat genotypes (96 from Pakistan and 4 from CIMMYT). Overall, seven puroidoline genes were identified. Among them Pina-d1b(null) (85%) was most common while Pinb-d1i (1%) and Pinb-d1ab (1%) were most rare gene. Out of 100 genotypes, 97 had hard texture either with single or double mutant pin-genes, while three had a soft texture with wild type (Pina-d1a/Pinb-d1a) pin-genes. All four quality attributes revealed a vast deviation among germplasm, while their correlation analysis revealed the highest association (r=0.71) between thousand-grain weight and protein content. In addition, three out of four quality traits, i.e. thousandgrain weight, SDS-sedimentation value and protein content, showed the highest mean values for double mutant (Pina-d1b/Pinb-d1b) followed by single mutant, i.e. Pina-d1b. The present study facilitates breeders for varietal selection (hard or soft) according to end-use quality and offers valuable information for improving wheat quality.

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Potential Use of Wild Einkorn Wheat for Wheat Grain Quality Improvement: Evaluation and Characterization of Glu-1, Wx and Ha Loci

Cited by 6 publications

References 74 publications

Introducing Beneficial Alleles from Plant Genetic Resources into the Wheat Germplasm

Introducing Beneficial Alleles from Plant Genetic Resources into the Wheat Germplasm

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

Prevalence of Puroindoline Genes and Their Impact on Quality Traits in A Diverse Germplasm of Wheat Genotypes

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