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对９个甘蓝型油菜细胞质雄性不育（ＣＭＳ）系恢保关系的测定结果表明，Ｘｉｎ－４－２Ａ（陕２ＡＣＭＳ）、Ｘｉｎ－４－３Ａ（７５－３ＡＣＭＳ）、Ｘｉｎ－４－４Ａ（１５３ＡＣＭＳ）、宁４Ａ（ＭＩＣＭＳ）、ＡＢ１与波里马细胞质雄性不育（ｐｏｌＣＭＳ）系Ｘｉｎ－４－１Ａ具有相同的恢保关系；Ｓ４５Ａ与ｎａｐＣＭＳ不育系５０２１Ａ具有相同的恢保关系。线粒体ＤＮＡ的４种限制性内切酶（ＥｃｏＲⅠ、ＨｉｎｄⅢ、ＰｓｔⅠ和ＳａｌⅠ）酶切片断的多态性比较和ｍｔＤＮＡ的ＲＦＬＰ分析表明，Ｘｉｎ－４－２Ａ、Ｘｉｎ－４－３Ａ、Ｘｉｎ－４－４Ａ、宁４Ａ、ＡＢ１的细胞质与ｐｏｌＣＭＳ不育系Ｘｉｎ－４－１Ａ的相同；Ｓ４５Ａ、ｐｏｌＣＭＳ保持系Ｘｉｎ－４的细胞质与ｎａｐＣＭＳ不育系ＷｅｓｔａｒＳ的相同；ｐｏｌ细胞质、ｎａｐ细胞质、ｏｇｕ细胞质和正常细胞质之间的ｍｔＤＮＡ结构有明显不同。因此，Ｘｉｎ－４－１Ａ、Ｘｉｎ－４－２Ａ、Ｘｉｎ－４－３Ａ、Ｘｉｎ－４－４Ａ、宁４Ａ、ＡＢ１均属ｐｏｌＣＭＳ，Ｓ４５Ａ和５０２１Ａ属ｎａｐＣＭＳ，Ｐ２４Ａ（ｏｇｕＣＭＳ）与其它ＣＭＳ完全不同。
The results of the determination of the relationship between the CMS lines and the CMS lines of 9 Brassica napus showed that Xin-4-2A (Shaanxi 2ACMS), Xin-4-3A (75-3ACMS), Xin-4-4A (153ACMS ), Ning 4A (MICMS), AB1 had the same restorer relationship with Xin-4-1A of Pol CMS and S45A had the same restorer relationship with 5021A of napCMS. Comparison of the polymorphism of mitochondrial DNA fragments with restriction endonucleases (EcoRⅠ, HindⅢ, PstⅠ and SalⅠ) and RFLP analysis of mtDNA revealed that Xin-4-2A, Xin-4-3A, Xin- 4A, Ning4A, the cytoplasm of AB1 was the same as that of polCMS sterile line Xin-4-1A; the cytoplasm of S45A, polCMS maintainer line Xin-4 was the same as that of napCMS sterile line WestarS; pol cytoplasm, nap cytoplasm, ogu cytoplasm and normal The structure of mtDNA between the cytoplasms is obviously different. Therefore, Xin-4-1A, Xin-4-2A, Xin-4-3A, Xin-4-4A, Ning 4A and AB1 belong to polCMS, while S45A and 5021A belong to napCMS. P24A (oguCMS) is completely different from other CMS.