ISSN:
1432-2242
Keywords:
Wheat
;
HMW glutenin subunits
;
Bread-making quality
;
Gene
;
Protein sequence
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary A gene encoding the high-molecular-weight (HMW) subunit of glutenin 1Ax1 was isolated from bread wheat cv Hope. Comparison of the deduced amino acid sequence with that previously reported for an allelic subunit, 1Ax2*, showed only minor differences, which were consistent with both subunits being associated with good bread-making quality. Quantitative analyses of total protein extracts from 22 cultivars of bread wheat showed that the presence of either subunit 1Ax1 or 1Ax2*, when compared with a null allele, resulted in an increase in the proportion of HMW subunit protein from ca. 8 to 10% of the total. It is suggested that this quantitative increase in HMW subunit protein may account for the association of 1Ax subunits with good quality.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00224285
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