文献类型： 外文期刊

作者： Wang, Zhiwei ¹ ; Xiang, Changping ² ; Mei, Shiyong ² ;

作者机构： 1.Huazhong Agr Univ, Coll Hort & Forestry Sci, Key Lab Minist Educ Hort Plant Biol, Wuhan 430070, Peoples R China

2.Huazhong Agr Univ, Coll Hort & Forestry Sci, Key Lab Minist Educ Hort Plant Biol, Wuhan 430070, Peoples R China; Hubei Acad Agr Sci, Wuhan 430064, Peoples R China

关键词： cytoplasmic male sterility;PCR markers;radish;Rf gene;SCAR;sulfate transporter gene

期刊名称：EUPHYTICA （ 影响因子：1.895； 五年影响因子：2.181 ）

ISSN： 0014-2336

年卷期： 2006 年 149 卷 1-2 期

页码：

收录情况： SCI

摘要： A random amplified polymorphic DNA (RAPD) marker named OPC06-1900 was previously found linked to a fertility restorer gene (Rfw) for cytoplasmic male sterility (CMS) in radish (Raphanus sativus L.). The RAPD marker was converted to a dominant sequence characterized amplified region (SCAR) marker SCC06-1894 by molecular cloning and nucleotide sequencing. A BLAST search revealed that the SCAR marker SCC06-1894 showed significant homology to the corresponding regions of Arabidopsis and Brassica sulfate transporter genes. The presence of the intron and exon of the DNA fragment SCC06-1894 was demonstrated by comparing RT-PCR and PCR products. Thus, allele-specific oligonucleotide primers were designed to amplify the SCAR marker SCC06-415. PCR test with F-2 plants and sequence analysis showed that SCC06-1894 and SCC06-415 were allelic, linked to Rfw/rfw gene at 8.0 cM. Nine oligonucleotide primers were designed based on a single radish nuclear restorer gene mRNA. A survey of these primer combinations by bulked segregant analysis (BSA) identified three polymorphisms. The three PCR-based markers were co-segregant in the coupling phase and distant from the Rfw gene by 1.4 cM. These specific markers distributed on both sides of the Rfw gene and will be helpful for breeding new rapseed (Brassica napus L.) restorer lines.