冀鲁豫花生育成品种的遗传多样性分析  

Genetic Diversity of Peanut(Arachis hypogaea L. ) Varieties Bred in Hebei,Shandong and Henan Provinces

作　　者：耿健[1] 刘立峰[1] 崔顺立[1] 陈焕英[1] 魏新燕[1] 

机构地区：[1]河北农业大学农学院/河北省作物种质资源重点实验室,保定071001

出　　处：《植物遗传资源学报》2012年第2期201-206,共6页Journal of Plant Genetic Resources

基　　金：现代农业产业技术体系建设专项基金;河北省应用基础研究计划重点基础研究项目(10960120D);河北省自然科学基金(C2009000591)

摘　　要：以冀鲁豫三省不同地域的41个花生育成品种为材料,利用SSR分子标记结合田间表型鉴定、聚类分析等方法对其遗传多样性进行了研究。结果表明,21对SSR引物对41个花生育成品种进行了扫描,共检测到52个等位变异,每个位点2～4个,平均2.5个,Shannon信息指数变幅为0.21～1.40,平均为0.73,聚类分析显示在阈值为5.54可将供试品种分为3大类群7个亚类。不同品种9个农艺性状变异系数在13.16%～186.49%之间,基于农艺性状的聚类分析结果显示在阈值为5.48时可以将供试品种分为6大类群11个亚类,各大类群间品种的农艺性状表现各具特点。In order to assess the genetic diversity,41 peanut varieties bred in Hebei, Henan and Shandong provinces were used with methods of SSR markers,phenotypic identification and cluster analysis. Using 21 pairs of SSR primers,41 peanut varieties were screened and 52 alleles were detected,with 2 -4 alleles per locus and aver- age of 2.5. Shannon information index of varieties ranged from 0.21 to 1.40 with an average was 0.73 for each pair of primers. Cluster analysis based on SSR markers showed that 3 groups and 7 subclasses were clustered while threshold was 5.54. The coefficient of variation for nine kinds of agronomic traits were at range of 13.16% - 186.49%. And the result of cluster analysis based on agronomic traits showed that these varieties were divided into 6 categories and 11 subclasses when threshold was 5.48. Varieties in each category have their own characters.

关 键 词：花生 育成品种 SSR 遗传多样性 

分 类 号：S565.2[农业科学—作物学]