GMP在RIL群体中的分离及与SIG、AWRC和WPC的相关分析

谷蛋白大聚合体(GMP)是谷蛋白聚合体的重要组成部分，其含量反映了谷蛋白聚合体粒度分布状况。本文以一个普通小麦的重组自交系后代群体为试验材料，对GMP的提取、分离和测定方法以及GMP含量、碱性水保持力(AWRC)、膨胀系数(SIG)及湿面筋含量的群体变异、GMP含量与其它三项品质指标的相关性进行了研究。结果表明：该GMP含量的提取、分离和测定的方法具有简单、快速、稳定、经济的特点，实验结果相对准确，可信度高，重复性好。GMP含量、AWRC、SIG及湿面筋含量在群体后代中表现为微效多基因控制的数量性状，相对亲本的性状，变异较大。GMP含量与SIG、湿面筋含量呈极显著相关(r=0．63，r=0．56)，而与AWRC没有明显的线性相关。

Separation of GMP among RIL Population and the Correlation Analysis between AWRC, Swelling Index of Gultenin,Wet Gluten Content and GMP Content

Glutenin macropolymer(GMP) is one of the most important components of gultenin polymer. The size distribution of glutenin polymer can be expressed by the content of GMP.In this paper,the method of extraction, isolation and measurement about GMP,the difference and correlation among GMP content,Alkalescence water retentiveness capacity,Swelling index of gultenin and wet gluten content were analyzed by a recombinant inbred lines.The results showed that the method processed the simple,rapid,steady and economic characteristic.Results of experiment was reliable and can be repeated well.GMP content,AWRC,SIG and wet gluten content were controlled by minor polygenes,compare to two parents, the variance was relatively great. It was significantly positive correlation among SIG and wet gluten content and GMP content,there was no significantly positive correlation between AWRC and GMP content.