32份糯玉米自交系的遗传多样性分析.pdf

江西农业学报2012，24(12)：6～8 Acta Agricuhurae Jiangxi 32份糯玉米自交系的遗传多样性分析 赵文明，陈艳萍，孟庆长，郑飞，孔令杰，袁建华+ (江苏省农业科学院粮食作物研究所，江苏南京210014) 摘要：利用SSR标记分析了32份糯玉米自交系的遗传多样性与亲缘关系，用9l对扩增带型稳定的SSR引物从供试材 分为4类，分别为通系5类群、衡白522类群、中玉04类群和混合类群，划分结果基本符合自交系的来源情况。 关键词：糯玉米；自交系；遗传多样性；SSR标记 中图分类号：$513文献标识码：A文章编号：1001—8581(2012)12一O006—03 of32 CornInbredLines Study蚰GeneticDiversityWaxy ZHAO Fei，KONG Jian—hua+ Wen—Ining，C眦NYah—ping，MENGQing—chang，ZHENGLing—jie，YUAN ofFood of (Institute 210014，China) Crops，JiangsuAcademyAgriculturalSciences，Nanjing and of32 coiniubredlineswerestudiedSSR of Abstract：-11le waxy markers．Ninety—onepairs geneticdiversityrelationship by ssR stable band detected630alleles thelinestested．ThenumberofallelesSSR primersgiving amplifiedpattern among average per eachSSRlocusvariedfrom0．34 locuswas6．92withthe from3to16．，111evalueof informationcontent(P，C)for range polymorphism to the of0．72．’11le distancefrom0．57to the of0．78．Theresultof O．9l，withaverage genetic ranged 0．92，withaverage clustering showedthatthe32inbredlinesweredividedinto 5 522 04 Hun- analysis Tongxisubgroup，Hengbaisubgroup，Zhongyusubgroup，and he UPGMAmethod．’11le results慨similartothatbasedon resourceand subgroupby clustering geographical germplasmgenealogy． line；Genetic marker Keywords：Waxycorn；Inbred diversity；SSR 玉米自交系间的亲缘关系对育种实践中自交系的