四川农业大学学报 ›› 2000, Vol. 18 ›› Issue (02): 113-117.doi: 10.16036/j.issn.1000-2650.2000.02.005

• 研究快报 • 上一篇    下一篇

山西小麦品种(系)的高分子谷蛋白亚基遗传变异分析

李光蓉1, 杨足君1, 畅志坚2   

  1. 1. 四川农业大学 小麦研究所, 四川 都江堰 611830;
    2. 山西省农科院 作物遗传研究所, 山西 太原 041000
  • 收稿日期:2000-03-01 出版日期:2000-06-30 发布日期:2017-04-21
  • 基金资助:
    本研究得到四川省科委应用基础项目的资助。

Genetic Variation of High molecular weight Glutenin Subunits in Shanxi Wheat

LI Guang-rong1, YANG Zu-jun1, CHANG Zhi-jian2   

  1. Triticeae Research Institute, Sichuan Agricultural University, Dujiangyan 611830, Sichuan, China
  • Received:2000-03-01 Online:2000-06-30 Published:2017-04-21

摘要: 应用SDS-PAGE技术,对来源于山西的39份小麦品种(系),其中26个为已审定的被大面积推广的高产品种,13个为新近育成的优良品系,分析了它们的高分子谷蛋白亚基组成。同时按照Payne等的谷蛋白亚基评分标准,进行了品质评分。结果表明,山西小麦育成品系的高分子谷蛋白亚基的组成较差,主要表现在:Glu-A1位点上主要为Null或1亚基,2*较少;在Glu-B1上为7+8、7+9或20亚基;而在Glu-D1上主要为2+12亚基,优质的5+10亚基组合较少。这也可能部分解释了山西小麦的烘烤品质较差的原因。因此,可以加强引进具有优质谷蛋白亚基的小麦种质资源,综合利用SDS-PAGE等技术将它们引入小麦品种中,丰富小麦品种中谷蛋白亚基组成的遗传基础,从而进一步提高山西小麦的品质育种的水平。另外,其中的5个含优质亚基、兼抗条锈病的品种(系)可以作为四川小麦育种的种质资源。

关键词: 山西小麦, 高分子谷蛋白亚基, 品质育种

Abstract: The seed storage protein of 39 Shanxi wheat, including 26 released varieties and advanced lines, were separated by SDS-PAGE to determine the high-molecular-weight glutenin subunit composition. According to the quality scores method described by Payne, the Glu-1 quality scores of each genotype were evaluated. Theresults indicate that the Glu-1 quality scores of Shanxi wheat exhibit quite low. The majority of genotype possesse subunits N (null allele) and 1 coded by Glu-A1, subunits 7+8, 7+9 and 20 by Glu-B1, as well as subunits 2+12, 3+12 and 4+12 by Glu-D1. But rather few genotypes carry subunits for good quality, such as 2* by Glu-A1 and 5+10 by Glu-D1. These compositions of Glu-1 can partialy explain the poor breadmaking quality of Shanxi wheat. Therefore, by using SDS PAGE methods, introduction and utilization of novel wheat genetic resource with good quality HMW-GS to wheat breeding can improve the quality of Shanxi wheat. In addition, 5 of Shanxi wheat lines with good glutenin subunits, which also show resistance to stripe rust of Sichuan, can be used as excellent wheat resources to Sichuan wheat breeding.

Key words: SHANXI WHEAT, HMW-GS, QUALITY IMPROVEMENT

中图分类号: 

  • S512.1.033(225)