Correlation Between HMW-GS, the Pentosan and Their Components and Their Cluster Analysis in Different Wheat Varieties

doi:10.3321/j.issn:1000-7091.2006.05.009

Abstract

Abstract: The composition of the HMW-GS,pentosan and pentosan components in different wheat varieties were analyzed.Based on the scores of these subunits in several wheat varieties,the correlations between the composition of HMW-GS,subunit combination types,pentosan,pentosan components and theirt ratio were analyzed.The results showed that 11 types of HMW-GS were detected.Among different varieties,the variation was great for Ara,but small for Xyl,and the pentosan and its components were very different,with big coefficient of variability.Significant inverse correlation was found between most of indexes and Glu-1 loci,among which the effect on Glu-D1 was bigger than on other two loci.N,7,17+18 and 2+12 subunits had great influence on pentosan and its components.But the good subunits for baking quality,such as 1 and 5+10,had little contribution to pentosan and its components.The content of pentosan and its components was higher in varieties with subunits N,7 and 2+12.Finally,the 21 varieties were clustered into 4 groups according to their HMW-GS scores and pentosan content.The first group of varieties could be used to feed production,and the third group as raw material of food industry.

Key words: Wheat, HMW-GS, Pentosan components, Correlation, Cluster analysis

CLC Number:

S512.01

LI Chun-xi, ZHANG Bei-bei, SHAO Yun, JIANG Li-na, LI Dan-dan. Correlation Between HMW-GS, the Pentosan and Their Components and Their Cluster Analysis in Different Wheat Varieties[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(5): 33-38. doi: 10.3321/j.issn:1000-7091.2006.05.009.

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