新考察收集野生大豆与已保存野生大豆的遗传多样性比较  

Genetic Analysis of Newly Collected Wild Soybean Materials and Conserved Germplasm Collected from the Same Places

作　　者：李向华[1] 田子罡[1] 李福山[1] 

机构地区：[1]中国农业科学院作物品种资源研究所,北京100081

出　　处：《植物遗传资源学报》2003年第4期345-349,共5页Journal of Plant Genetic Resources

基　　金：国家财政专项;国家 973项目 (G19980 10 2 0 3 );国家科技攻关 ( 2 0 0 1BA5 11B0 6)资助

摘　　要：本研究以 6 5份东北地区新收集野生大豆资源以及与其来源相同的已经编目保存的资源为实验材料 ,利用 6 0对SSR引物进行遗传分析。分析结果表明新收集材料在 2 2个位点的遗传多样性指数都高于以前收集的资源 ,有 6 2个等位变异是新收集材料所特有。新收集材料与其它资源间的平均遗传相似系数为 0 1918。说明新收集的材料使得野生大豆的遗传多样性水平得到提高 ,对野生大豆进行补充考察和收集是有价值的。In this study, 27 newly collected wild soybean materials and 38 conserved germplasm collected from the same places were used as materials. Sixty SSR primers were used to analyze the genetic diversity of these materials. The objective was to illustrate the necessity of collecting wild soybean materials from the place where soybean had been collected before. 62 new alleles were found only to exist in the newly collected materials, and in 22 loci, the genetic diversity index of newly-collected materials was higher than the conserved germplasm. The average similarity coefficient of newly-collected materials with other ones was 0.1918. The results indicated that it was valuable to recollect wild soybeans.

关 键 词：野生大豆 遗传多样性 SSR 遗传分析 

分 类 号：S565.1[农业科学—作物学]