Indian Society of Genetics & Plant Breeding

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High molecular weight glutenin subunits variation in relation to biscuit making quality in wheat (Triticum aestivum L. em. Theil.)

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The SOS-PAGE of 30 wheat genotypes demonstrated the
presence of 1, 2* and null HMW-GS at Glu-1A locus, 7+8,
7+9, 14+15 and 17+18 at Glu-1B and 2+12 and 5+10
HMW-GS at Glu-10 locus. The two durum wheats POW
215 and WH 896 lacked all the HMW-glutenin subunits,
viz., 1, 2*, nUll, 7+8, 7+9, 14+15, 17+18, 2+12 and 5+10.
The 30 wheat genotypes displayed polymorphism for HMWGS at Glu-1A, Glu-1B and Glu-10 loci. The diversity of
the Genotypes for HMW-GS was also apparent from the
dendrogram drawn using UPGMA cluster analysis. The
wheat genotypes Raj 3765, UP 2576 and UP 2530 having
cookie spread ratio of 6.1, 7.0 and 10.3, respectively
carried 2+12 subunits at Glu-10 suggesting a relationship
between better biscuit making quality and HMW-GS 2+12.
HMW-GS 5+10 was shown to be associated with inferior
biscuit making quality in PBW 175, PBW 343, UP 2567,
UP 2569, UP 2425, UP 2562 and PBW 373. However, this
relationship did not hold true in few cases possibly due
to influence of other factors.
 

Keywords: Wheat, HMW-GS, SDS-PAGE, quality breeding

Info

Year: 2004
Volume: 64
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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