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Qualitative and quantitative analysis of low-molecular-weight subunits in Korean wheat cultivars by two-dimensional electrophoresis
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/294352
LMW-GSs represent approximately 1/3 of the total wheat gluten fraction, which have not been widely studied, even though they are important in the context of wheat end-use quality. In this study, we report on the qualitative and quantitative analysis of LMW-GS in korean wheat cultivars by 2DE in 32 cultivars of Korean wheat for the use of the basis of wheat breeding. We firstly identified spots corresponding each of Glu-3 alleles. The 2DE results for each cultivar will be used as reference map or protein marker discriminating wheat cultivars, wheat and rice, imported and Korean flour. Unexpectedly, five LMW-GS spots were found to be expressed at a common position in hexaploid wheat cultivars, and these spots might play something in glutenin biosynthesis. Total spot numbers were expressed variously between 20 and 10, and average spot number was shown 17.12. The average number of spots in Glu-A3, Glu-B3 and Glu-D3 were 3.0, 4.56 and 2.96 respectively. When the Korean wheat cultivars were compared with the Chinese spring (1.0) in the average relative expression level, Korean one’s were lower as 0.67. Especially, Gobun was the highest as 1.32 and Baekjoong was the lowest as 0.24. Also we investigated phylogenetic relationship based on frequency of HMW-GS spots and quantification value of each spot to all LMW-GS spots. As a result, the varieties of Korean wheat could be classified into five groups.
