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The restorer gene for soybean M-type cytoplasmic male sterility, Rf-m, is located in a PPR gene-rich region on chromosome 16

文献类型： 外文期刊

作者： Wang, Dagang 1 ; Zhang, Lei 1 ; Li, Jiekun 1 ; Hu, Guoyu 1 ; Wu, Qian 1 ; Jiang, Haiyan 2 ; Huang, Zhiping 1 ;

作者机构： 1.Anhui Acad Agr Sci, Crop Res Inst, Key Lab Crop Qual Improvement Anhui Prov, Hefei 230031, Anhui, Peoples R China

2.Chinese Acad Sci, Shanghai Ctr Plant Stress Biol, Shanghai 201602, Peoples R China

关键词： soybean line W931A;simple sequence repeat marker;restorer line WR016;mapping

期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）

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收录情况： SCI

摘要： Over the past decade, M-type cytoplasmic male sterility (CMS) line W931A and a variety of restorer lines have been exploited for the release of hybrid seeds in soybean (Glycine max). However, the identities of restorer genes in the nuclei of soybean restorer lines are still unclear. In this study, we analysed the inheritance pattern of restorer locus Rf-m from restorer line WR016 and constructed a high-resolution map of this locus. Results showed that Rf-m in WR016 is a monogenic dominant gene located within a 162.4-kb region on chromosome 16, which is flanked on each side by new developed simple sequence repeat (SSR) markers GmSSR1602 and GmSSR1610 at a distance of 0.11 and 0.25cM, respectively. Nineteen open reading frames (ORFs) were predicted in this region. Of these, seven genes arranged in tandem on chromosome 16 encode pentatricopeptide repeat (PPR) proteins, which is similar to other reported restorer loci in plants. These results lay a solid foundation for map-based cloning of the Rf-m gene and will be helpful for marker-assisted selection of elite CMS restorer lines.

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