Analysis of HMW glutenin subunits encoded by chromosome 1A of bread wheat (Triticum aestivum L.) indicates quantitative effects on grain quality

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Halford, N. G., Field, J. M., Blair, H., Urwin, P., Moore, K., Robert, L., Thompson, R., Flavell, R. B., Tatham, A. S. and Shewry, P. R. 1992. Analysis of HMW glutenin subunits encoded by chromosome 1A of bread wheat (Triticum aestivum L.) indicates quantitative effects on grain quality. Theoretical and Applied Genetics. 83 (3), pp. 373-378.

AuthorsHalford, N. G., Field, J. M., Blair, H., Urwin, P., Moore, K., Robert, L., Thompson, R., Flavell, R. B., Tatham, A. S. and Shewry, P. R.
Abstract

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.

KeywordsWheat ; HMW glutenin subunits; Bread-making quality; Gene ; Protein sequence
Year of Publication1992
JournalTheoretical and Applied Genetics
Journal citation83 (3), pp. 373-378
Digital Object Identifier (DOI)doi:10.1007/BF00224285
Web address (URL)https://link.springer.com/article/10.1007/BF00224285
Open accessPublished as non-open access
Funder project or code101
207
240
Publication process dates
Accepted11 Jun 1991
ISSN14322242
0040-5752
Copyright licenseCC BY
Publisher

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