作物学报2001，Vol.27Issue(2)：149-156,8.
利用RFLP和SSR标记划分玉米自交系杂种优势群的研究
Heterotic Grouping of Maize Inbred Lines Using RFLP and SSR Markers
摘要
Abstract
Five heterotic groups were determined among 29 maize inbred lines using RFLP and SSR markers. A total of 56 polymorphic probe enzyme combinations and 66 polymorphic SSR primers were identified among the inbred lines, which produced 187 and 232 alleles respectively. Mean polymorphism information content (PIC) for RFLPs(0.42) was lower than that for SSRs(0.54), but mean genetic similarity (GS) were similar (0.62 & 0.64). The five heterotic groups based on both RFLPs and SSRs were Sipingtou, Luda Red cob, LSC, BSSS, and PA groups. They were consistent with the grouping based on the available pedigree data. Moreover, inbreds with unknown pedigree were assigned to the established heterotic groups. The identification of PA group provided a valuable guidance for maize hybrid breeding.关键词
玉米/RFLP/SSR/遗传相似系数/杂种优势群分类
农业科技引用本文复制引用
袁力行,Warburton,M...利用RFLP和SSR标记划分玉米自交系杂种优势群的研究[J].作物学报,2001,27(2):149-156,8.基金项目
本研究受"九五”国家重点科技攻关项目 （）
