生物技术通报 ›› 2016, Vol. 32 ›› Issue (5): 61-68.doi: 10.13560/j.cnki.biotech.bull.1985.2016.05.008

• 技术与方法 • 上一篇    下一篇

基因枪转化法对抗旱基因导入玉米的研究

李志亮125, 吴忠义2, 杨清3, 张希太4, 叶嘉15, 邢浩春15, 陈建中15, 黄丛林2   

  1. 1.邯郸学院 生命科学与工程学院,邯郸 056005;
    2.北京农业生物技术研究中心,北京 100097;
    3.南京农业大学生命科学学院,南京 210095;
    4.河北省邯郸市农业科学院,邯郸 056001;
    5.河北省高校冀南太行山区野生资源植物应用技术研发中心,邯郸 056005
  • 收稿日期:2015-08-05 出版日期:2016-05-25 发布日期:2016-05-27
  • 作者简介:李志亮,男,博士,副教授,研究方向:植物生理、植物细胞工程和分子生物学;E-mail:zhiliangli09@126.com
  • 基金资助:
    国家转基因生物新品种培育重大专项资助项目(2009ZX08003-009B),邯郸市科学技术研究与发展计划项目(1322101065),邯郸学院自然科学研究项目(13208)

The Transformation of Drought-resistant Gene into Maize by Microprojectile Bombardment

LI Zhi-liang125,WU Zhong-yi2,YANG Qing3,ZHANG Xi-tai4,YE Jia15,XING Hao-chun15,CHEN Jian-zhong15,HUANG Cong-lin2,   

  1. 1. College of Life Sciences and Engineering,Handan University,Handan 056005;
    2. Beijing Research Center of Agro-Biotechnology,Beijing 100097;
    3. College of Life Sciences,Nanjing Agricultural University,Nanjing 210095;
    4. Handan Academy of Agricultural Sciences in Hebei Province,Handan 056001;
    5. Application Technology Research and Development Center of Wild Resource Plants in Taihang Mountain Area of Southern Hebei for Hebei Institutions of Higher Education,Handan 056005
  • Received:2015-08-05 Published:2016-05-25 Online:2016-05-27

摘要: 全球水资源短缺,干旱已是玉米生产发展的主要限制因素。通过培育抗旱能力提高的转P5CS基因玉米株系,为玉米抗旱遗传育种提供新材料。利用基因工程策略构建植物表达载体pBPC-P5CS-F129A,用基因枪法对玉米自交系京501幼胚愈伤组织进行遗传转化,在选择培养基中加入10 mg/L 的草丁膦进行筛选,对草丁膦抗性再生植株进行了PCR 检测和 Northern blot鉴定,对转P5CS基因玉米植株进行了抗旱性分析。结果表明,与对照相比,转基因植株的抗旱能力得到提高。干旱胁迫下,转P5CS基因玉米植株的脯氨酸含量比对照高,而丙二醛含量比对照低。

关键词: 玉米, 愈伤组织, 基因枪法, 草丁膦, 遗传转化, 抗旱性

Abstract: A drought-resistance function gene,VaP5CS,was cloned from mothbean(Vigna aconitifolia). Plant expression vector pBPC-P5CS-F129A was constructed using gene engineering strategy,then the genetic transformation of young embryo callus in maize inbred line Jing 501 was performed by microprojectile bombardment. Further,the transformed explants were directly selected on the medium containing 10 mg/L glufosinate,and the glufosinate-resistant plantlets were confirmed by PCR amplification and Northern blot identification. Finally,the different drought resistance indexes of P5CS-transgenic maize plants were analyzed. The results showed that the transgenic plants presented the improved drought resistance comparing to control plants. Under drought stress,the proline content in the P5CS-transgenic maize plant was higher than that in the control,while the MDA content was lower than that in the control.

Key words: Zea mays, callus, microprojectile bombardment, glufosinate, genetic transformation, drought resistance