新疆主栽小麦HMW谷蛋白亚基遗传变异研究

采用十二烷基硫酸钠－聚丙烯酰胺凝胶电泳（SDS－PAGE）技术对新疆近50年以来年推广面积达2万hm^2以上的34个主栽小麦品种高分子谷蛋白亚基（GLU－1）位点的遗传组成进行了研究，认为新疆主栽小麦品种高分子谷蛋白亚基具有较丰富的遗传变异，共检测到了12种亚基和16种亚基组合类型，根据亚基组成进行的品质评分分析结果表明，新疆主栽小麦品种品质评分在4－10之间，平均5．79，这可能是新疆小麦中缺乏优质强筋小麦的遗传原因，除60年代外，其他各时期品种平均品质评分差异不大，本文筛选到6份具有5＋10亚基，4份具有2亚基，4份具有1亚基的品种供育种工作者在以后的育种工作中利用。

HMW-Glu Variations among Xinjiang Elite Wheat Cultivars

The genetic variation at Glu-1locus of 34 Xinjiang elite wheat cultivars was detected by using SDS-PAGE.The high level of genetic variation at Glu-1 locus was detected.In this study,tweleve subunits and sixteen subunit combinations were found,respectively.The quality scores of each elite cultivar at Glu-1 have been calculated according to the method described by Payne et al (1987).The mean quality score in 34 genotypes was 5.79,ranging from 4 to 10.Six genotypes carried 5+10 subunits,four genotype carried 2^* subunit,four genotype carried 1 subunit will been screened for the quality breeding program.