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园艺学报 ›› 2025, Vol. 52 ›› Issue (10): 2642-2654.doi: 10.16420/j.issn.0513-353x.2025-0172

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

洋葱雄性不育恢复基因Ms位点KASP标记的开发及应用

杨妍妍, 李艳伟, 王振宝, 曹德高, 徐鑫, 刘冰江*()   

  1. 山东省农业科学院蔬菜研究所,农业农村部黄淮设施园艺工程重点实验室,山东省大宗露地蔬菜育种重点实验室,济南 250100
  • 收稿日期:2025-05-26 修回日期:2025-09-02 出版日期:2025-10-25 发布日期:2025-10-28
  • 通讯作者:
    * E-mail:
  • 基金资助:
    国家重点研发计划项目(2023YFD1600201); 山东省重点研发计划项目(2024LZGC014)

Development and Application of KASP Marker for the Ms Locus of Male Sterility Restoration Gene in Onion

YANG Yanyan, LI Yanwei, WANG Zhenbao, CAO Degao, XU Xin, LIU Bingjiang*()   

  1. Key Laboratory of Huang-Huai Protected Horticulture Engineering,Ministry of Agriculture and Rural Affairs,Shandong Key Laboratory of Bulk Open-field Vegetable Breeding,Institute of Vegetables,Shandong Academy of Agricultural Sciences,Jinan 250100,China
  • Received:2025-05-26 Revised:2025-09-02 Published:2025-10-25 Online:2025-10-28

摘要:

为了提高洋葱雄性不育恢复基因Ms位点的选择效率,加快育种进程,利用AcSKP1等位基因序列上的SNP差异位点,开发了适用于高通量检测的竞争性等位基因特异性PCR(kompetitive allele specific PCR,KASP)标记。结果表明,KASP标记KMs4可以有效地将F2分离群体Ms位点的基因型分为MsMsMsmsmsms三类,并将BC1分离群体Ms位点的基因型分为Msmsmsms两类,其分型结果与AcSKP1标记鉴定及表型观察结果完全一致。此外,该标记在不同遗传背景已知基因型的材料中展现出良好的通用性。利用该标记对洋葱开放授粉群体进行育性基因型筛选系统评价,筛选出具有不同育性特征的育种系,为后续杂交选育提供了优质亲本材料。研究表明,KMs4标记是与洋葱雄性不育恢复基因Ms位点紧密连锁的分子标记,能够实现大规模育种材料的高效基因分型。

关键词: 洋葱, 雄性不育, 恢复基因, KASP标记

Abstract:

To improve the selection efficiency of the onion male sterility restorer gene Ms locus and accelerate the breeding process,this study developed a kompetitive allele-specific PCR(KASP)marker suitable for high-throughput detection based on SNP variation sites in the allelic sequence of the AcSKP1 gene. The results showed that the KASP marker KMs4 effectively classified the genotypes(MsMsMsmsmsms)of the Ms locus in an F2 segregating population into three distinct categories,and the genotypes at the Ms locus in the BC1 segregating population into two categories(Msmsmsms). Moreover,the genotyping results fully consistent with those obtained using the AcSKP1 marker. The versatility of the KMs4 marker was further confirmed across materials with known genotypes from diverse genetic backgrounds. Fertility trait evaluation was conducted on collected onion open-pollinated populations,from which different breeding lines were screened and selected for hybrid breeding. In summary,the KMs4 marker is a molecular marker tightly linked to the onion male sterility restorer gene Ms locus,enabling high-throughput genotyping of large-scale breeding materials.

Key words: Allium cepa, male sterility, restoration gene, KASP