Investigation of diversity in<i>Aegilops biuncialis</i>and<i>Aegilops umbellulata</i>by A-PAGE

Ahmadpoor, Fatemeh; Zakaria, Rasool Asghari; Firoozi, Behnam; Shahbazi, Hossein

doi:10.1080/14786419.2014.931392

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…geniculata was reported by Medouri et al (2015) , who identified a total of 27 alleles at the two HMW glutenin loci, Glu-M1 and Glu-U1 , resulting in 29 HMW glutenin protein patterns. Other studies on the composition of glutenins and gliadins in Aegilops species have also been reported ( Bandou et al, 2009 ; Kozub et al, 2011 ; Wang et al, 2012 , 2015 ; Ahmadpoor et al, 2014 ; Dai et al, 2015 ; Medouri et al, 2015 ; Garg et al, 2016 ).…”

Section: Introductionmentioning

confidence: 77%

“…No studies have yet been reported on the composition of DF in Aegilops species with the U and M genomes, but previous results on HMW glutenin subunit alleles showed wide variation within these species ( Ahmadpoor et al, 2014 ; Dai et al, 2015 ; Medouri et al, 2015 ; Wang et al, 2015 ; Garg et al, 2016 ). In order to determine the extent of variation in the amounts of protein, β-glucan, TOT-pentosan, and WE-pentosan in Ae.…”

Section: Resultsmentioning

confidence: 99%

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Addition of Aegilops U and M Chromosomes Affects Protein and Dietary Fiber Content of Wholemeal Wheat Flour

et al. 2017

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Cereal grain fiber is an important health-promoting component in the human diet. One option to improve dietary fiber content and composition in wheat is to introduce genes from its wild relatives Aegilops biuncialis and Aegilops geniculata. This study showed that the addition of chromosomes 2Ug, 4Ug, 5Ug, 7Ug, 2Mg, 5Mg, and 7Mg of Ae. geniculata and 3Ub, 2Mb, 3Mb, and 7Mb of Ae. biuncialis into bread wheat increased the seed protein content. Chromosomes 1Ug and 1Mg increased the proportion of polymeric glutenin proteins, while the addition of chromosomes 1Ub and 6Ub led to its decrease. Both Aegilops species had higher proportions of β-glucan compared to arabinoxylan (AX) than wheat lines, and elevated β-glucan content was also observed in wheat chromosome addition lines 5U, 7U, and 7M. The AX content in wheat was increased by the addition of chromosomes 5Ug, 7Ug, and 1Ub while water-soluble AX was increased by the addition of chromosomes 5U, 5M, and 7M, and to a lesser extent by chromosomes 3, 4, 6Ug, and 2Mb. Chromosomes 5Ug and 7Mb also affected the structure of wheat AX, as shown by the pattern of oligosaccharides released by digestion with endoxylanase. These results will help to map genomic regions responsible for edible fiber content in Aegilops and will contribute to the efficient transfer of wild alleles in introgression breeding programs to obtain wheat varieties with improved health benefits.Key Message: Addition of Aegilops U- and M-genome chromosomes 5 and 7 improves seed protein and fiber content and composition in wheat.

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Section: Introductionmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 99%

Addition of Aegilops U and M Chromosomes Affects Protein and Dietary Fiber Content of Wholemeal Wheat Flour

et al. 2017

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“…biuncialis and Ae. umbellulata have been reported to possess high gluten quality indices due to gliadins (Ahmadpoor et al, 2014) (Table 3). Gliadins from Ae.…”

Section: Utilization Of Aegilops For Improvement Of End Product Qualimentioning

confidence: 99%

Potential of Aegilops sp. for Improvement of Grain Processing and Nutritional Quality in Wheat (Triticum aestivum)

et al. 2019

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Wheat is one of the most important staple crops in the world and good source of calories and nutrition. Its flour and dough have unique physical properties and can be processed to make unique products like bread, cakes, biscuits, pasta, noodles etc., which is not possible from other staple crops. Due to domestication, the genetic variability of the genes coding for different economically important traits in wheat is narrow. This genetic variability can be increased by utilizing its wild relatives. Its closest relative, genus Aegilops can be an important source of new alleles. Aegilops has played a very important role in evolution of tetraploid and hexaploid wheat. It consists of 22 species with C, D, M, N, S, T and U genomes with high allelic diversity relative to wheat. Its utilization for wheat improvement for various abiotic and biotic stresses has been reported by various scientific publications. Here in, for the first time, we review the potential of Aegilops for improvement of processing and nutritional traits in wheat. Among processing quality related gluten proteins; high molecular weight glutenins (HMW GS), being easiest to study have been explored in highest number of accessions or lines i.e., 681 belonging to 13 species and selected ones like Ae. searsii, Ae. geniculata and Ae. longissima have been linked with improved bread making quality of wheat. Gliadins and low molecular weight glutenins (LMW GS) have also been extensively explored for wheat improvement and Ae. umbellulata specific LMW GS have been linked with wheat bread making quality improvement. Aegilops has been explored for seed texture diversity and proteins like puroindolins (Pin) and grain softness proteins (GSP). For nutrition quality improvement, it has been screened for essential micronutrients like Fe, Zn, phytochemicals like carotenoids and dietary fibers like arabinoxylan and β-glucan. Ae. kotschyi and Ae. biuncialis transfer in wheat have been associated with higher Fe, Zn content. In this article we have tried to compile information available on exploration of nutritional and processing quality related traits in Aegilops section and their utilization for wheat improvement by different approaches.

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Aegilops L.

Feldman,

Levy

2023

Wheat Evolution and Domestication

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This chapter discusses the classification of the genus Aegilops, and presents a detailed description of its sections and species. It shows the morphology, geographical distribution, ecological affinities, cytology, and cytogenetic aspects of the species. Similarly, the structure and distribution of repetitious DNA in the various species, evolution of the diploid and genome analyses of the allopolyploid species, and relationships between them and to species of Triticum, are presented. The occurrence of gametocidal (GC) genes in species of Aegilops, their mode of action, evolutionary significance, and use in the production of deletion and dissection bread wheat lines, are also being reviewed.

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Investigation of diversity inAegilops biuncialisandAegilops umbellulataby A-PAGE

Cited by 5 publications

References 23 publications

Addition of Aegilops U and M Chromosomes Affects Protein and Dietary Fiber Content of Wholemeal Wheat Flour

Addition of Aegilops U and M Chromosomes Affects Protein and Dietary Fiber Content of Wholemeal Wheat Flour

Potential of Aegilops sp. for Improvement of Grain Processing and Nutritional Quality in Wheat (Triticum aestivum)

Aegilops L.

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