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园艺学报 ›› 2011, Vol. 38 ›› Issue (1): 151-151–158 .

• 研究报告 • 上一篇    下一篇

大白菜细菌人工染色体文库的构建及鉴定

冯大领1,2,石学萍1,杨 煜3,王彦华1,轩淑欣1,赵建军1,申书兴1,*   

  1. (1河北农业大学园艺学院,河北保定 071001;2河北农业大学生命科学学院,河北保定 071001;3山东省农业科学院高新技术研究中心,济南 250100)
  • 收稿日期:2010-08-23 修回日期:2010-12-20 出版日期:2011-01-25 发布日期:2011-01-25
  • 通讯作者: 申书兴

Construction and Characterization of a Bacterial Artificial Chromosome Library from Chinese Cabbage

FENG Da-ling1,2,SHI Xue-ping1,YANG Yu3,WANG Yan-hua1,XUAN Shu-xin1,ZHAO Jian-jun1,and SHEN Shu-xing1,*   

  1. (1College of Horticulture,Agricultural University of Hebei,Baoding,Hebei 071001,China;2College of Life Science,Agricultural University of Hebei,Baoding,Hebei 071001,China;3High-tech Research Center,Shandong Academy of Agricultural Sciences,Ji’nan 250100,China)
  • Received:2010-08-23 Revised:2010-12-20 Online:2011-01-25 Published:2011-01-25
  • Contact: SHEN Shu-xing

摘要: 以我国优良的大白菜自交系‘85-1’为材料,利用pIndigoBAC-5为载体,通过对高分子量DNA的制备、大片段DNA的选择、连接转化条件等几个方面的优化,构建了大白菜细菌人工染色体文库。该文库由57 600个克隆组成,平均大小为98.4 kb,空载率为1.5%;覆盖大白菜基因组10.3倍;挑取6个克隆培养5 d后,经HindⅢ完全酶切检测,其指纹图谱稳定一致。大白菜细菌人工染色体文库的构建为重要功能基因的克隆和定位及比较基因组研究奠定了基础。

关键词: 大白菜, 细菌人工染色体文库, 插入片段, 稳定性

Abstract: A bacterial artificial chromosome library of Brassica campestris L. ssp. pekinensis(Lour.)Olsson(Chinese cabbage)was constructed from inbred line‘85-1’with the vector pIndigoBAC-5. The key processes of the construction,such as preparation of high molecular weight DNA,selection of digested fragments,condition of ligation and transformation,were studied. The library consists of 57 600 clones in which the average insert size is about 98.4 kb and the empty clones are about 1.5%. The library represents an equivalent of 10.3 fold size of Chinese cabbage genome. Six clones randomly picked from this library show no HindⅢ fingerprint changes after 5 days’ successive culture,which indicates that the clones in the library are stable. The library will lay the foundation for gene clone,location and comparative genomics research of Brassica.

Key words: Chinese cabbage, bacterial artificial chromosome library, insert fragment, stability

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