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中国沙漠 ›› 2001, Vol. 21 ›› Issue (3): 300-302.

• 实验研究 • 上一篇    下一篇

用于RAPD分析的沙拐枣DNA提取方法

陶玲1, 刘志学2, 何兴东1, 刘新民1   

  1. 1. 中国科学院寒区旱区环境与工程研究所, 甘肃兰州 730000;
    2. 上海大学生命科学学院, 上海 201800
  • 收稿日期:1999-11-20 修回日期:2000-01-14 出版日期:2001-09-20 发布日期:2001-09-20
  • 作者简介:陶玲(1970-),女(汉族),甘肃省靖远县人,博士研究生,主要从事植物生理生态学研究。
  • 基金资助:
    中国科学院沙坡头开放试验站基金资助

DNA Extraction Method for RAPD Analysis with Calligonum spp.

TAO Ling1, LIU Zhi-xue2, HE Xing-dong1, LIU Xin-min1   

  1. 1. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. Academy of Life Sciences, Shanghai University, Shanghai 201800
  • Received:1999-11-20 Revised:2000-01-14 Online:2001-09-20 Published:2001-09-20

摘要: DNA分子标记技术是检测遗传差异的一种新技术,特别是RAPD技术,应用更为广泛。DNA质量是保证RAPD分析成功的关键。本文用改进的SDS法对沙拐枣属植物种子的总DNA进行了提取。琼脂糖凝胶电泳结果表明:得到的DNA片段大小在20kb以上;通过PCR扩增实验,证明用此方法提取的DNA,可直接用于随机扩增的DNA多态性(RAPD)遗传标记。

关键词: 沙拐枣, 总DNA, 提取, SDS法, RAPD

Abstract: DNA Molecular Markers is a new method for detecting genetic variation. RAPD(Random amplified polymorphic DNA) technique has been widely used in genetic and systematic evolution of plant. The quality of DNA sample is important in RAPD analysis. In this paper, an improved SDS method of DNA isolation was applied to obtain total DNA from Calligonum spp. The results of agarose gel electrophoresis showed that the fragments of DNA samples were larger than 20 kb; The PCR results showed that high level of genetic variation was found between four Calligonum species. It was also proved that the isolated DNA could be used directly for RAPD analysis which are useful for detecting the genetic diversity of Calligonum.

Key words: Calligonum, DNA, extraction, SDS, RAPD

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