Analysis of Dynamic Accumulation of Three Types of Glutenin Subunits and Their Content in Relation to Sedimentation Value in Common Wheat

• Published in: Agricultural sciences in China 2006-02, Vol.5 (2), p.155-160
• Main Authors: HAO, Jun-jie, CHEN, Jun-ying, CHEN, Xin-jian, CUI, Dang-qun, CHENG, Xi-yong
• Format: Article
• Language: English
• Subjects: 亚单元; 堆积作用; 麦谷蛋白
• ISSN: 1671-2927
• DOI: 10.1016/S1671-2927(06)60033-3

The biosynthetic time and accumulations of A-, B-, and C-type glutenin subunits in 7 winter wheat cultivars with different quality （strong, medium, weak gluten） were analyzed by SDS-PAGE. The results showed that no glutenin subunit was observed within 8 d after anthesis. Parts or all A-, B-, and C-type subunits appeared around day 12 in different cultivars. Other A-, B-, and C-type subunits appeared gradually. The accumulation of A-, B-, and C-type subunits fluctuated before maturity. The results of analysis of correlation between the ratios of A/T （total content of glutenin subunits）, A/C, AJ （B＋C）, （A＋B）/C, and （A＋B）/T and SDS-sedimentation value suggested that they were more significant. The negative correlation between the ratio of （B＋C）/T and SDS-sedimentation value was more significant, and the correlations between the ratio C/T and the SDS-sedimentation value were significantly negative.