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  • 1
    Electronic Resource
    Electronic Resource
    Linkage map of prolamin loci Gli-D4 and Gli-D5 in hexaploid wheat (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 115 (1996), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: By electrophoretic analysis of F2 progenies from crosses among the hexaploid wheat varieties ‘Cajeme 71’, ‘Ablaca’, ‘Anza’ and ‘Pané 247’, two new prolamin loci Gli-D4 and Gli-D5, were mapped on the short arm of chromosome ID. The Gli-D4 locus controls gliadins of type γ and is situated on the short arm of chromosome ID between the centromere and the Gli-D1 locus with a genetic distance of 10.1±2.4 cM from this locus. The Gli-D5 locus controls gliadin type ω and was mapped 3.7 ± 0.8 cM from Gli-Dl and located between Gli-Dl and the telomere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1996.tb00899.x
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  • 2
    Electronic Resource
    Electronic Resource
    Polymorphism of waxy proteins in Spanish durum wheats (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 119 (2000), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A collection of 547 durum wheats (103 cultivars and 444 landraces) from Spain was analysed for waxy protein composition. The electrophoretic patterns showed low polymorphism. At the Wx-A1 locus, 99.8% of the wheats had the Wx-Ala allele and only one had the null Wx-Alb allele. The Wx-Bl locus was more polymorphic and four different alleles were detected: Wx-Bla (41.3%), Wx-Blc (42.6%), a new allele, not detected before in bread wheat and named Wx-Blf (16.0%), and the null Wx-Blb allele, found for the first time in one durum wheat. Eleven durum wheats with different allelic composition at the Wx-l loci were analysed for amylose content. Wheats with the Wx-Bla allele had a lower amylose content than those with Wx-Blc or Wx-Blf. The lowest amylase content was found in the only durum wheat having the null Wx-Blb allele.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.2000.tb01640.x
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  • 3
    Electronic Resource
    Electronic Resource
    Complexity of the Gli-A3 locus in bread wheat (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 115 (1996), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Two bread wheat cultivars, ‘Ariana 8’ and ‘Cajeme 71’, and 129 F2, grains from the cross between them were analysed for gliadin composition. Two monodimensional (A-PAGE and SDS-PAGE) and two different two-dimensional (SDS-PAGE x SDS-PAGE and A-PAGE x SDS-PAGE) electrophoretic methods were used. Parents differed at the Gli-Al locus, detected by A-PAGE. The SDS-PAGE of the aqueous ethanol extractable protein under nonreduced conditions showed two bands of ‘Ariana 8’ and one of ‘Cajeme 71’, encoded by genes located 22 cM from the Gli-Al locus, and therefore, located at the Gli-A3 locus. This locus has been considered to contain genes coding for ω-gliadins alone. The two-dimensional maps of the parents showed that one band from ‘Ariana 8’ was an ω-gliadin, but the other two bands, one from each parent, were γ-gliadins. Results obtained indicated that GH-A3, like Gli-Al, is a complex locus coding for both ω-and γ-gliadins.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1996.tb00900.x
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  • 4
    Electronic Resource
    Electronic Resource
    Gli-B3/Glu-B2 encoded prolamins do not affect selected quality properties in the durum wheat cross ‘Abadía’בMexicali 75’ (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 115 (1996), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A study was made of the effects of the Gli-B3/Glu-B2 encoded prolamins on durum-wheat quality. Twenty-six F3 lines from the durum wheat cross ‘Abadia’בMexicali 75’ were analysed electrophoretically for prolamin composition and for the following quality parameters: SDS sedimentation value, mixing properties, and percentage grain protein and percentage vitreous kernels. The results showed that the presence or absence of the Gli-B3/Glu-B2 encoded prolamins did not result in any significant difference in the quality characteristics of the F3 lines; however, as expected, the LMW glutenins encoded at Glu-B3 showed large differences and are therefore the major prolamins influencing durum wheat gluten quality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1996.tb00943.x
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  • 5
    Electronic Resource
    Electronic Resource
    Relationships between different prolamin proteins and some quality properties in durum wheat (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 114 (1995), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The objective of this paper was to study the differences between some prolamin variants coded at the loci Glu-3/Gli-1, Glu-1 and Gli-A2 and their relative roles in durum-wheat quality. F3 lines from four durum wheat crosses (‘Abadia’בMexicali’. ‘Oscar’בArdente’, ‘Oscar × Mexicali’ and ‘Alaga’בC. of Balazote’) were analysed for gliadin and glutenin composition by electrophoresis. Whole-grain-derived samples were analysed for SDS sedimentation (SDSS) value, mixing properties, and contents of protein and vitreousness. The glutenin patterns LMW-2. LMW-2− and LMW-2 (CB) at Glu-B3/Gli-B1 were associated with better gluten quality than were LMW-1 and LMW-2*. The glutenin subunits LMW4 and LMW3 + 15 at Glu-A3/Gli-A1 and HMW-1 showed better mixing properties than LMW7 + 12, LMW5 and the null phenotype. respectively. The HMW glutenin subunits 20 + 8 at Glu-B1 showed a negative association with gluten quality, but the rest of the HMW glutenin subunits and α-gliadins did not show any influence on gluten quality.Correlations between the results of the SDSS test and the mixograph were highly significant, but no correlation was found between these results and protein and vitreousness contents. The results are discussed in relation to the development of durum wheat varieties with improved qualities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1995.tb00756.x
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  • 6
    Electronic Resource
    Electronic Resource
    Relationship Between Gluten Strength and Glutenin Proteins in Durum Wheat Cultivars (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 104 (1990), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: An electrophoretic study of gliadin and glutenin proteins, mainly low-molecular-weight (LMW) Glutenin Subunits, was undertaken to investigate possible assoeiations between these proteins and gluten strength. Thirty-eight durum wheat cultivars having different origins and currently grown in Spam were analysed. Different electrophoretic methods were used to analyse the seed storage proteins. Protein grain content was estimated and gluten strength was measured by the SDS-sedimentation test. New patterns for LMW glutenins were observed. Besides the known patterns of LMW-1, associated with γ-gliadin 42, and LMW-2 associated with γ-gliadin 45, six cultivars had LMW-2− associated with γ-gliadin 43, one cultivar showed LMW-2* associated with γ-gliadin 44, and another cultivar, null for γ-42 and γ-45, had LMW-1−. Significant differences for gluten strength were found among groups of cultivars with different LMW patterns. High molecular weight glutenins were found in general to be poor indicators of viscoelastic properties, although band 20 showed a negative influence on quality. The results are discussed in relation to development ol cultivars with good gluten strength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1990.tb00443.x
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  • 7
    Electronic Resource
    Electronic Resource
    The high and low molecular weight glutenin subunit polymorphism of Algerian durum wheat landraces and old cultivars (2005)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 124 (2005), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The high molecular weight (HMW) and B-zone low molecular weight (B-LMW) glutenin subunit composition of 45 Algerian durum wheat (Triticum turgidum L. var. durum) landraces and old cultivars were examined by sodium-dodecyl-sulphate polyacrylamide gel electrophoresis (SDS-PAGE). Nine accessions were heterogeneous and presented two or three genotypes. All together, 33 glutenin patterns were detected, including 12 for HMW and 15 for B-LMW glutenin subunits. Twenty-four different alleles were identified for the five glutenin loci studied, Glu-A1 (3), Glu-B1 (6), Glu-A3 (8), Glu-B3 (5) and Glu-B2 (2). Five new alleles were found, three at Glu-A3 and two at Glu-B3. At the Glu-1 loci, the Glu-A1c-Glu-B1e allelic composition was predominant (31%). For the B-LMW glutenins, the most common allelic composition was Glu-A3a-Glu-B3a-Glu-B2a (36%). The collection analysed shows a high percentage of glutenin alleles and allele combinations related to high gluten strength, together with some others that have not been tested so far. This information could be useful to select local varieties with improved quality and also as a source of genes to develop new lines when breeding for quality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.2005.01118.x
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  • 8
    Electronic Resource
    Electronic Resource
    Waxy proteins and amylose content in diploid Triticeae species with genomes A, S and D (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 123 (2004), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A collection of 89 accessions of diploid species of wheat was analysed for waxy protein in the grain: 39 accessions of Einkorn wheats, 41 accessions of Sitopsis section wheat and nine accessions of Triticum tauschii. The electrophoretic patterns showed low polymorphism. In each group of wheat, a single and different allele was detected. In accessions of Einkorn wheats that allele had a similar electrophoretical mobility to the Wx-A1a allele of the bread wheat ‘Chinese Spring’, in accessions of the Sitopsis section it had a similar mobility to that of the Wx-B1f allele of tetraploid wheat, and in the accessions of T. tauschii, it was similar to the Wx-D1a allele of the bread wheat ‘Chinese Spring’. The accessions were also analysed for apparent amylose content. Results showed that amylose content ranged from 22 to 35% in Einkorn wheats, from 28 to 41% in the Sitopsis section and from 26 to 35% in accessions of T. tauschii.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.2004.00883.x
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  • 9
    Electronic Resource
    Electronic Resource
    High genetic diversity of Spanish common wheats as judged from gliadin alleles (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 119 (2000), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Gliadin alleles were identified in 100 common wheat cultivars registered and/or grown in Spain during the last 40 years. A very high level of genetic polymorphism was found: in total, 103 allelic variants including one null-allele were found at the six major Gli loci in the Spanish wheats studied. An average genetic diversity for these six loci was found to be higher (H=0.844) than in any group of wheat cultivars studied previously. Spanish wheats bred in Spain demonstrated even higher genetic diversity (H=0.868), probably because of the occurrence in this group of some landraces (local varieties) assumed to be strongly differentiated to fit local environments. The high level of genetic diversity of wheats grown in Spain was maintained by the introduction of distantly related wheat germplasm from different sources, especially from Italy and CIMMYT. A slight decrease of genetic diversity in recently registered cultivars might be caused by the excessive introduction of French wheats. Thirteen new alleles found in Spanish wheats were catalogued, including Gli-D2w which encodes the first Gli-D2-controlledγ-gliadin to be found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.2000.00450.x
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  • 10
    Electronic Resource
    Electronic Resource
    Polymorphism of waxy proteins in Iberian hexaploid wheats (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 117 (1998), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A collection of 130 cultivars of bread wheat, 332 landraces of bread wheat and 144 spelt wheats was analysed for waxy proteins in the grain. The electrophoretic patterns showed very low polymorphism and most of the hexaploid wheats had the Wx-Ala, Wx-D1a and Wx-B1 alleles of ‘Chinese Spring’. Two alleles were detected at Wx-A1 (Wx-A1a, and Wx-A1b (null)), the latter was present in only 5.1% of the bread wheat landraces and 7.6% ofthe spelt wheats. No allelic variation was found at the Wx-D1 locus and all the hexaploid wheats had the Wx-D1a allele. Wx-B1 was the most polymorphic locus, with three alleles detected: Wx-B1a, Wx-B1b (null) and Wx-Blc coding for a Wx-B1 protein with a slightly different mobility from Wx-B1a. The null Wx-B1b allele was found in 10.8% of the bread wheat cultivars, 21.4% of the bread wheat landraces and 12.5% of the spelt wheats. Among the 604 hexaploid wheats analysed, only two bread wheat landraces (0.6%) and two spelt wheats (1.4%) had the null allele at both Wx-A1 and Wx-B1 loci.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1998.tb01951.x
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