scholarly journals Effect of High Molecular Weight Glutenin Subunits on Bread-Making Quality Using Near-Isogenic Lines.

2000 ◽  
Vol 50 (4) ◽  
pp. 303-308 ◽  
Author(s):  
Kanenori Tanaka ◽  
Hiroaki Yamauchi ◽  
Zenta Nishio ◽  
Tatsuo Kuwabara
2007 ◽  
Vol 13 (3) ◽  
pp. 227-234 ◽  
Author(s):  
Hiroaki YAMAUCHI ◽  
Miwako ITO ◽  
Zenta NISHIO ◽  
Tadashi TABIKI ◽  
Sun-Ju KIM ◽  
...  

2013 ◽  
Vol 19 (4) ◽  
pp. 553-561 ◽  
Author(s):  
Dragan Zivancev ◽  
Branislava Nikolovski ◽  
Aleksandra Torbica ◽  
Jasna Mastilovic ◽  
Nevena Djukic

Polymeric wheat endosperm proteins, especially the high-molecular-weight glutenin subunits (HMW-GS), are probably the most interesting protein fraction giving the essential information about bread-making quality of wheat flour. A relatively new method that shows a great potential for a fast, reliable and automatable analysis of protein purity, sizing and quantification is microfluidic or Lab-on-a-Chip (LoaC) capillary electrophoresis. This work was aimed to explore the possibilities of implementation of LoaC method to analysis of protein samples isolated from a Serbian common wheat variety, emphasizing the steps that might bring uncertainties and affect reproducibility of obtained glutenin subunits quantitation results. A good resolution of protein bands in a molecular weight range of 14.0 to 220.0 kDa was achieved. The reproducibility of HMW-GS sizing and quantitation were good, with the average coefficient of variation values of 1.2% and 12.2%. The ratio of HMW-GS to low-molecular-weight glutenin subunits (LMW-GS) was about 20%. The investigation ruled out influences of the extract solution addition and the buffer addition steps of the applied method, as well as the individual chip influence on GS quantitation results. However, there was statistically significant difference between HMW-GS quantitation results of multi-step and one-step extraction procedures applied prior to glutenin subunits extraction step.


Genome ◽  
1988 ◽  
Vol 30 (3) ◽  
pp. 442-445
Author(s):  
R. B. Gupta ◽  
K. W. Shepherd

Using sodium dodecyl sulphate-polyacrylamide gel electrophoresis, three new high-molecular-weight glutenin subunit/subunit combinations were detected in a Tunisian wheat cultivar (BT-2288) and these were designated bands 26, 7 + 11, and 5 + 9. Analysis of 112 testcross seeds revealed that the genes controlling them were additional alleles at Glu-A1, Glu-B1, and Glu-D1 loci, respectively. These alleles enhance the genetic variability available for cultivar identification and possibly for improving the bread-making quality of hexaploid wheat.Key words: Triticum aestivum, Glu-1 loci, high-molecular-weight glutenin subunits.


2014 ◽  
Vol 42 (2) ◽  
pp. 453-459 ◽  
Author(s):  
Asma MEDOURI ◽  
Inès BELLIL ◽  
Douadi KHELIFI

Aegilops geniculata Roth is an annual grass relative to cultivated wheat and is widely distributed in North Algeria. Endosperm storage proteins of wheat and its relatives, namely glutenins and gliadins, play an important role in dough properties and bread making quality. In the present study, the different alleles encoded at the four glutenin loci (Glu-M1, Glu-U1, Glu-M3 and Glu-U3) were identified from thirty five accessions of the tetraploid wild wheat A. geniculata collected in Algeria using Sodium dodecyl Sulfate - Polyacrylamide Gel Electrophoresis (SDS-PAGE). At Glu-M1 and Glu-U1 loci, encoding high molecular weight glutenin subunits (HMW-GS) or A-subunits, 15 and 12 alleles were observed respectively, including one new subunit. B-Low molecular weight glutenin subunits zone (B-LMW-GS) displayed a far greater variation, as 28 and 25 alleles were identified at loci Glu-M3 and Glu-U3 respectively. Thirty two subunits patterns were revealed at the C subunits- zone and a total of thirty four patterns resulted from the genetic combination of the two zones (B- and C-zone). The wide range of glutenin subunits variation (high molecular weight glutenin subunits and low molecular weight glutenin subunits) in this species has the potential to enhance the genetic variability for improving the quality of wheat./span>


2002 ◽  
Vol 8 (2) ◽  
pp. 178-182 ◽  
Author(s):  
Kanenori TAKATA ◽  
Hiroaki YAMAUCHI ◽  
Zenta NISHIO ◽  
Wakako FUNATSUKI ◽  
Tatsuo KUWABARA

Author(s):  
Marina Tikhonova ◽  
Anne Ingver ◽  
Reine Koppel

Abstract High molecular weight glutenin subunits (HMW-GS) of wheat are important factors in the determination of bread-making quality. They are responsible for elasticity and polymer formation of wheat dough. In the present study, 43 winter and 40 spring common wheat (Triticum aestivum L.) cultivars originated from Estonia, Belarus, Finland, Denmark, France, Germany, the Great Britain, Latvia, Lithuania, the Netherlands, Norway, Poland, Russia, Sweden, and New Zealand were characterised for Glu-A1 and Glu-D1 allelic composition using PCR method. Analyses were conducted with one DNA marker for identification of Glu-D1 allele encoding subunit Dx5, three DNA markers for Glu-A1 Ax1, Ax2* and AxNull subunits. It was determined that 32 (74.4%) winter and 35 (83.3%) spring cultivars had allele Glu-D1d, and 23 (53.5%) winter and 33 (78.6%) spring — Glu-A1a or Glu-A1b alleles, which have positive effect on dough properties. Polymorphism at Glu-A1 locus was detected in 15 cultivars, and 9 cultivars were polymorphic for locus Glu-D1. The obtained results were compared with published SDS-PAGE data. Complete or partial agreements were found for 78.1% of Glu-A1 and 70.6% of Glu-D1 alleles. Rapid and accurate identification of wheat Glu-1 alleles by molecular markers can be used for selection of wheat genotypes with good bread-making potential.


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