中国水稻科学2016，Vol.30Issue(3)：232-238,7.DOI:10.16819/j.1001-7216.2016.5156
水稻迟抽穗突变体 dth9的遗传分析与基因定位
Genetic Analysis and Gene Mapping of a Heading-delayed Mutant dth9 in Rice (Oryza sativa L .)
摘要
Abstract
A heading‐delayed mutant ,dth9 (days to heading 9)was identified from an ethyl methylsulfonate (EMS)‐induced 93‐11 mutant library .The heading date of dth9 delayed about 50 days compared to the wild‐type and there was no significant difference in other agronomic traits .Genetic analysis showed that the phenotype of dth9 was controlled by a single recessive nuclear gene .To map this gene ,two F2 populations were generated by crossing the dth9 mutant with Nipponbare or Wuyunjing 7 as mapping populations .By using SSR markers and eight new designed InDel markers , DT H9 was narrowed to a 240kb interval between the markers D9‐9 and D9‐17 near the centromere of chromosome 9 , there were no reports about genes associated with heading date in this interval .In addition ,the expression levels of genes related to heading date were significantly decreased in dth9 by quantitative real‐time PCR analysis .关键词
水稻/抽穗期/遗传分析/基因定位Key words
rice/heading date/genetic analysis/gene mapping分类
生物科学引用本文复制引用
叶卫军,胡时开,吴立文,郭龙彪,钱前..水稻迟抽穗突变体 dth9的遗传分析与基因定位[J].中国水稻科学,2016,30(3):232-238,7.基金项目
国家自然科学基金资助项目（31501279，31521064，31271700）；国家973计划资助项目（2013CBA01405）；中国博士后科学基金资助项目（2015M570181）；深圳市科技计划资助项目（JCYJ20150630165133402）。 （）
