Identification of sequence-related amplified polymorphism and insertion-deletion markers linked to the male fertility restorer gene of pol-like CMS06J45 in heading Chinese cabbage (Brassica rapa subsp pekinensis)
文献类型: 外文期刊
第一作者: Xu, X. Y.
作者: Xu, X. Y.;Zhang, Y.;Zhang, L. G.;Xu, X. Y.;Fang, Z. Y.
作者机构:
关键词: BrRfp;Heading Chinese cabbage;Insertion-deletion;Sequence-related amplified polymorphism;CMS06J4
期刊名称:GENETICS AND MOLECULAR RESEARCH ( 影响因子:0.764; 五年影响因子:0.912 )
ISSN: 1676-5680
年卷期: 2014 年 13 卷 4 期
页码:
收录情况: SCI
摘要: In order to map the restorer gene BrRfp of the polima (pol)-like cytoplasmic male sterility (CMS) 06J45 line in heading Chinese cabbage, an F-2 segregating population with 258 individuals of CMS06J45 and the restorer line 01S325 were tested by sequence-related amplified polymorphism (SRAP) and insertion-deletion (InDel) technologies combined with the bulked segregant analysis method. As a result, two SRAP markers, me3em3.366 and pm88bg5.263, that were linked with the BrRfp gene were identified from 463 SRAP primer pairs. By cloning, sequencing, and basic local alignment search tool analysis, the two markers were targeted to the BGIScaffold000053 of Brassica rapa in the Brassica database. Using the BGIScaffold000053 sequence, four InDel primer pairs were designed and identified to be linked with the BrRfp gene in this population. Linkage analysis showed that these markers were distributed on both sides of the BrRfp gene, the linkage distances of two nearest markers InDel878.1125 and InDel920.713 were 0.82 and 0.46 cM, respectively, and the BrRfp gene was restricted to a 243-kb genomic region of B. rapa. These specific markers provided basic information for map-based cloning of the BrRfp gene and will be very valuable for the marker-assisted selection of a new restorer line in heading Chinese cabbage.
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