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园艺学报 ›› 2010, Vol. 37 ›› Issue (5): 757-762.

• 蔬菜 • 上一篇    下一篇

与大白菜雄性不育基因Ms连锁的SCAR标记

刘志勇,冯 辉*,李承彧,魏 鹏,王丽丽   

  1. (沈阳农业大学园艺学院,沈阳110866)
  • 收稿日期:2010-03-31 修回日期:2010-05-04 出版日期:2010-05-25 发布日期:2010-05-25
  • 通讯作者: 冯 辉

SCAR Markers Linked to Ms,a Genetic Male Sterile Gene in Chinese Cabbage

LIU Zhi-yong,FENG Hui*,LI Cheng-yu,WEI Peng,and WANG Li-li   

  1. (Department of Horticulture,Shenyang Agricultural University,Shenyang 110866,China)
  • Received:2010-03-31 Revised:2010-05-04 Online:2010-05-25 Published:2010-05-25
  • Contact: FENG Hui

摘要: 用基因型为MsMs的大白菜雄性不育两用系‘AB01’的不育植株,与基因型为msms的双单倍体可育品系‘FH-1’杂交,构建BC1群体。采用BSA法,在不育池和可育池之间筛选512 对AFLP引物组合,获得了与不育基因连锁的3个AFLP 标记,并将其转化成SCAR标记syau_scr02、syau_scr03和syau_scr05。3个SCAR标记位于不育基因Ms的同一侧,与Ms的遗传距离分别为1.60、 1.60和2.50 cM。多态性检验表明,3个SCAR标记在‘AB01’和12个msms基因型的自交系之间具有良好的多态性。

关键词: 大白菜, 核基因雄性不育, AFLP, SCAR

Abstract: To identify molecular markers tightly linked to the male sterility gene Ms in Chinese cabbage, a BC1 population was developed from the cross between male sterile plants(MsMs)and fertile double haploid line ‘FH-1’(msms). AFLP primers were screened for polymorphisms between the parents and two bulks representing fertile and sterile plants. Out of 512 primer combinations, 3 combinations gave polymorphic amplification patterns. These polymorphic amplicons were cloned and successfully converted to dominant SCAR markers, designated syau_scr02, syau_scr03 and syau_scr05. All the SCAR markers are located on one side of the Ms locus with a map distance ranging from 1.60 to 2.50 cM. These SCAR markers show high polymorphism between ‘AB01’ and 12 fertile inbred lines.

Key words: Brassica campestris L. ssp. pekinensis(Lour.)Olsson, genetic male sterility, AFLP, SCAR

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