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中国农学通报 ›› 2014, Vol. 30 ›› Issue (12): 124-128.doi: 10.11924/j.issn.1000-6850.2013-2211

所属专题: 生物技术 棉花

• 农学 农业基础科学 • 上一篇    下一篇

转基因棉花抗虫基因的分子辅助选择

戴宝生 干建平 南策雄 陈晓伟 黄晓丽 卢华平 伊黎 李蔚   

  • 收稿日期:2013-08-19 修回日期:2013-09-09 出版日期:2014-04-25 发布日期:2014-04-25
  • 基金资助:
    湖北省农业科技创新中心科技专项“农作物新品种选育”(2007-620-001-03);黄冈市科技计划项目“棉花工厂化育苗水肥管理关键技术研究”(201012)。

Molecular Assisted Selection for Insect Resistant Gene (BT) in Transgenic Cotton

  • Received:2013-08-19 Revised:2013-09-09 Online:2014-04-25 Published:2014-04-25

摘要: 为提高棉花新品种选育过程中外源抗虫基因选择的准确性,以常规非转基因抗虫棉花品种、单价转基因抗虫棉品种、双价转基因抗虫棉品种为试验材料,选择能扩增Bt基因通用引物和棉花内源基因SAD1的引物,建立了抗虫基因的PCR检测方法。利用该方法对常规非转基因抗虫棉品系和转基因棉花品系进行了检测。结果表明,该方法可明确区分常规非转基因抗虫棉品系和转基因棉花品系;对高代育种品系进行检测表明40%转基因品系中存在单株不能扩增出预期的特异片段,而在非转基因系冈197中存在8.0%的单株扩增出预期的特异片段。该方法可应用于棉花新品种选育过程中对外源抗虫基因的检测,提高了选择的准确性和目的性。

关键词: 影响, 影响

Abstract: To improve the selection accuracy for exogenous insect resistant gene in cotton breeding, nontransgenic insect-resistant cotton varieties and the transgenic insect-resistant cotton varieties with single & two exogenous insect resistant genes were used to establish and optimize the PCR method for detection of exogenous insect resistant gene. Non-transgenic cotton lines and transgenic cotton lines were detected by Btspecific primers and SAD1 primers (an endogenous gene in cotton), the results showed that the individual in 40% of the transgenic plant lines has no expected amplicon, 8.0% individual in the non- transgenic lines GANG 197 has expected amplicon. This method can be applied to cotton breeding for exogenous gene detection and improves selection accuracy.