中国水稻科学2012，Vol.26Issue(1)：43-48,6.DOI:10.3969/j.issn.1001-7216.2012.01.008
水稻抽穗期主效QTL qHd8.1的精细定位
Fine Mapping of a Major QTL qHdS.1 for Heading Date in Rice
摘要
Abstract
C23011, containing a single introgrcsscd segment of chromosome 8, was derived from the CSSL population with Nipponbare as the donor and Guanglu'ai 4 as the recurrent parent. In normal long-day conditions, its heading date was 14. 1 d shorter than that of Nipponbare. Under short-day conditions, however, no obvious difference in heading date between C23011 and Nipponbare was observed. A segregation population derived from a BC, F2 individual with the heterozygous target segment was used for genetic analysis and gene mapping. The ratio of late heading plants to early heading plants showed a 3 : 1 frequency distribution, suggesting that the heading date variation was controlled by a single major QTL, which was named qHd8. 1. A physical map was constructed encompassing the qHd8. 1 locus and the locus was delimited to a 59. 94 kb interval between markers S8111 and S849 on BAC clone AP005164 using 1628 individuals with shorter heading date originated from the BC1 F1 populations. There are seven predicted genes within this region.关键词
水稻/抽穗期/数量性状位点/精细定位Key words
rice/ heading date/ quantitative trait loci/ fine mapping分类
生物科学引用本文复制引用
周勇,崔国昆,张言周,关成冉,常思源,顾铭洪,梁国华..水稻抽穗期主效QTL qHd8.1的精细定位[J].中国水稻科学,2012,26(1):43-48,6.基金项目
国家973计划资助项目(2011CB100107) （2011CB100107）
国家自然科学基金资助项目(31071068) （31071068）
江苏省属高校自然科学重大基础研究项目(10KJA210059) （10KJA210059）
扬州大学高层次人才科研启动基金资助项目(20100030). （20100030）
