小麦新高产品系的高分子谷蛋白亚基结构分析

Structural Studies on the High-molecular-weight Subunits of Wheat Glutenin in Some Wheat Line

应用SDS PAGE分析了 2 1个高产新品系高分子量谷蛋白亚基 (HMW GS) :其等位基因频率分别为 :Glu A1a(71% )、Glu A1b(2 9% ) ;Glu B1b(9 5 % )、Glu B1c(43% )、Glu B1d(9 5 % )、Glu B1e(38% ) ;Glu D1a(43% )、Glu D1c(5 % )、Glu D1d(5 2 % )。优质亚基组合 1,7+9,5 +10占 33%。 2 1个品系中 1R/ 1B易位系占 95 % ;高产、优质、抗病品系R5 7达面包小麦标准 ,宜重点推广利用 ,R5 9高产、高抗 ,并具强弹基因可作为面条或馒头小麦推广利用。此外 ,2 1个品系中有 8个品系具 2 0亚基 ,应引起注意。结果表明通过引入优质谷蛋白亚基 。

The high molecular weight subunits of Wheat Glutenin in 21 Wheat line were fractionated by SDS PAGE. The frequencies of HMW GS alleles of the 21 line are: Glu A1a(71%)?Glu A1b(29%); Glu B1b(9 5%)?Glu B1c(43%)?Glu B1d(9 5%), Glu B1e(38%); Glu D1a(43%), Glu D1c(5), Glu D1d(52%). The good subunits composition 1, 7+9, 5+10(33%). 1R/1B account for 95%, R57 is a line of good quality for further breeding use in Sichuan wheat growing region. R59 is a very promising new line of good yield performance and strength score and good Pm Yr resistance.