华北农学报2011，Vol.26Issue(6)：55-58,4.
水稻早抽穗突变体ehd(t)的遗传分析和分子定位
Genetic Analysis and Molecular Mapping of A Early Heading Date Mutant ( ehd (t) ) in Rice
摘要
Abstract
Rice heading date is an important agronomic trait. Mapping heading date gene is important for rice improvement. A rice( Oryza sativa L. ) mutant with a early heading date,designated as edh(t) ,was found from a ja-ponica rice variety Nipponbare. This early heading date mutant phenotype was stably expressed through successive five self-crossed generations, and its heading date was earlier 15 days than that in wild-type. Genetic analysis showed that the phenotype of edh (t) was controlled by a single dominant nuclear gene, temporarily designated as EHD(t). By means of molecular marker technique,the EHD(t) gene was mapped to an interval between two SSR markers RM223 and RM584 on chromosome 8 with two F2 segregating population, with genetic distances of 5.2 cM and 6. 1 cM to each marker respectively. This is the basis for marker-assisted selection and map-based coloning this EHD(t) gene.关键词
水稻/早抽穗基因/遗传分析/基因定位Key words
Rice/ Early heading date gene/ Genetic analysis/ Molecular mapping分类
生物科学引用本文复制引用
李万昌,姜丽娜,王俊伟,余娇娇..水稻早抽穗突变体ehd(t)的遗传分析和分子定位[J].华北农学报,2011,26(6):55-58,4.基金项目
河南省科技攻关资助项目(102102310318) （102102310318）
河南省教育厅资助项目(2010A210021) （2010A210021）
