›› 2008, Vol. 10 ›› Issue (4): 56-62.

• 研究报告 • 上一篇    下一篇

利用花粉管通道法将耐草甘膦基因mG2-epsps 导入玉米自交系的研究初报

王秀君[1,2] 郎志宏[1] 陆伟[1] 林敏[1] 单安山[2] 黄大昉[1]   

  1. [1]中国农业科学院生物技术研究所,北京100081 [2]东北农业大学动物科技学院,哈尔滨150030
  • 收稿日期:2008-06-02 修回日期:2008-06-20 出版日期:2008-08-15 发布日期:2009-07-29
  • 通讯作者: 郎志宏,副研究员,博士,主要从事抗虫、耐草甘膦转基因玉米研究。Tel:010-2109857;E-mail:langzh@caas.net.cn
  • 作者简介:王秀君|博士研究生|研究方向植物基因工程。
  • 基金资助:

    国家自然科学基金项目(30771383),863计划项目(2007AA102182)资助.

Transferring Glyphosate-tolerant mG2-epsps Gene into Maize |Inbred Line via Pollen-tube Pathway

WANG Xiu-jun, LANG Zhi-hong| LU Wei, LIN Min| SHAN An-shan, HUANG Da-fang   

  1. 1. Biotechnology Research Institute, Chinese Academy of Agricultural Science, Beijing 100081 ; |2. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
  • Received:2008-06-02 Revised:2008-06-20 Online:2008-08-15 Published:2009-07-29

摘要:

构建了含有耐草甘膦基因mG2-epsps的植物表达载体pUmG2,采用花粉管通道法将其导入优良玉米自交系X90中,对Tn代1542株植株进行草甘膦喷洒实验,共得到32株能够耐受0.25%草甘膦药液的抗性植株;对这32株抗性植株的PCR检测结果表明,其中29株为PCR阳性植株,平均转化率为1.88%;Southern杂交和Western杂交检测结果证明mG2-epspps基因已整合至玉米基因组并正确表达。

关键词: 花粉管通道法 草甘膦 raG2-epsps基因 转基因玉米

Abstract:

A plant expression vector pUmG2 harboring the glyphosate-tolerant mG2-epsps gene was constructed and transferred into the maize inbred line X90 by pollen-tube pathway. Among the 1 542 transformed plants of TO generation, 32 glyphosate-tolerant plants were survived after sprayed with 0.25% glyphosate, and 29 of them were con- firmed positive plants by PCR analysis. The average transformation rate was 1.88%. Southern blot and Western blot showed that the rnG2-epsps gene had been introduced into maize genome and expressed correctly.

Key words: pollen-tube pathway, glyphosate, mG2-epsps gene, transgenic maize

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