中国水稻科学2013，Vol.27Issue(2)：117-121,5.DOI:10.3969/j.issn.1001-7216.2013.02.002
RFT1与Hd1所在区间对水稻抽穗期、株高和千粒重的作用
Effects of the RFT1 Region and Hd1 Region on Heading Date, Plant Height and Thousand-grain Weight in Rice (Oryza sativa)
摘要
Abstract
Heading date is a key factor determining the regional and seasonal adaptation of rice. It has been frequently observed that QTLs for heading date could exert pleiotropism on yield traits and plant height. However, the pleiotropism of QTLs for heading date other than Ghd7 and DTH8 (Ghd8 ) remains to be validated. Two BC2 F5 populations segregated in the regions harboring heading date gene RFT1-Hd3a and Hdl in an isogenic genetic background were constructed using Zhenshan 97B as the recurrent parent and Milyang 46 as the donor parent. QTLs for heading date, plant height and thousand-grain weight were detected using Windows QTL Cartographer 2. 5. In addition, four homozygous combinations of RFT1-Hd3a and Hdl were classified based on the genotypes of Si2944 tightly linked to RFT1-Hd3a and the Hd1 gene marker Si9337, and the phenotypic differences among the four groups were analyzed. QTLs were detected for each of the three traits analyzed in both regions, which did not interact with each other. It was also shown that the effects of the Hdl region were always larger than that of the RFT1-Hd3a region.关键词
水稻/抽穗期基因/一因多效/株高/千粒重Key words
rice/ gene for heading date/ pleiotropism/ plant height/ thousand-grain weight分类
生物科学引用本文复制引用
陈俊宇,王凯,龚俊义,樊叶杨,黄得润,庄杰云..RFT1与Hd1所在区间对水稻抽穗期、株高和千粒重的作用[J].中国水稻科学,2013,27(2):117-121,5.基金项目
国家863计划资助项目(2012AA101102) （2012AA101102）
浙江省水稻种业科技创新团队项目(2010R50024) （2010R50024）
中央级公益性科研院所基本业务费专项(2012RG002-3). （2012RG002-3）
