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

(3 citation statements)

References 72 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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“…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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“…The genetic resources stored in wild relatives of crops are potential sources of new genetic diversity to be introduced into wheat breeding programs(Sharma et al 2021). Aegilops and wild wheat species have a potential interest to be useful allele sources in the improvement of T. aestivum(Huertas-García et al 2021;Rakszegi et al 2020). Many physiological, productivity and quality performances of cultivated wheat could be modified via the contribution of Aegilops species(Kumar et al 2019;Qiu et al 2022).…”

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confidence: 99%

Assessment of Genetic Relation for Different Ploidy Levels of Aegilops and Triticum Possessing Different Genome-Bearing Species using Start Codon Target Marker

Ahmad

2023

Preprint

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The Fertile Crescent of Southwest Asia holds high genetic diversity of crop species of the grass tribe Triticeae, which provide staple food for the majority human population. Genetic diversity and their relationships were studied among 51 accessions from Aegilops and Triticum species from Iraqi Kurdistan. Eighteen SCoT markers were used to generate a total of 139 alleles. The discriminating power of the markers was assessed with polymorphism information content (PIC) and marker index (MI), that valued at 0.56 and 3.7, respectively. These results indicate the informativeness of the markers used for studying genetic diversity among the Aegilops and Triticum species. A high level of diversity was identified among the accession, to separate three distinct groups based on the SCoT data. All the accessions from different species with an ‘A’ genome were clustered together in a group, including Aegilops tauschii (possessing D genome). While the other Aegilops (U genome) were clustered in the other two groups. Analysis of molecular variance (AMOVA) partitioned 62% of variability among populations, while 38% of variation was considered between accessions within populations. Principal coordinate analysis (PCoA) for SCoT data showed that the first two components clarified 54.73% of the total variation, indicating consistent patterns of genetic relationships between the accessions. Genetic relationships inferred from UPGMA dendrogram analysis were matched with the PCoA, indicating that the grouping patterns of the accessions were in agreement with their botanical classifications. These results obtained could allow for future insight into wheat breeding programs.

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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 72 publications

Introducing Beneficial Alleles from Plant Genetic Resources into the Wheat Germplasm

Introducing Beneficial Alleles from Plant Genetic Resources into the Wheat Germplasm

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

Assessment of Genetic Relation for Different Ploidy Levels of Aegilops and Triticum Possessing Different Genome-Bearing Species using Start Codon Target Marker

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