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中国农学通报 ›› 2017, Vol. 33 ›› Issue (34): 40-45.doi: 10.11924/j.issn.1000-6850.casb17020065

所属专题: 油料作物 园艺

• 农学 农业基础科学 • 上一篇    下一篇

甘蓝型油菜带节子叶再生体系的建立及遗传转化应用

廖志强,王小武,孙亮,魏志英   

  1. 江西省宜春市农业科学研究所,江西省宜春市农业科学研究所,江西省宜春市农业科学研究所,江西省宜春市农业科学研究所
  • 收稿日期:2017-02-19 修回日期:2017-04-21 接受日期:2017-04-25 出版日期:2017-12-07 发布日期:2017-12-07
  • 通讯作者: 廖志强
  • 基金资助:
    江西省优势科技创新团队建设计划项目“双季稻区油菜早熟品种选育和机械栽培研究与应用”(20152BCB24013)。

Establishment of Regeneration System of Cotyledon With Cotyledonary Node From Brassica napus L. And Transformation Application

  • Received:2017-02-19 Revised:2017-04-21 Accepted:2017-04-25 Online:2017-12-07 Published:2017-12-07

摘要: 优良再生体系的建立是农杆菌介导植物遗传转化的基础。本研究建立了以甘蓝型油菜含部分子叶节的子叶为外植体的再生体系,该再生体系为,切取5日苗龄甘蓝型油菜含部分子叶节的带柄子叶为外植体,置于添加3mg L-1 6-BA的MS基本培养基中培养5天,外植体再生出丛生不定芽,不定芽再生率为100%。基于新建立的带节子叶再生体系,本研究通过农杆菌介导,成功地将用pFGC5941载体构建的BnTFL1基因干扰载体转入甘蓝型油菜中,从播种到得到生根抗性苗,整个转化周期只需要60-70天,较传统甘蓝型油菜以不带节子叶为外植体100-130天的转化周期大大缩短。

关键词: 橡胶, 橡胶, 气象条件, 气象灾害, 气象服务

Abstract: The establishment of a good regeneration system is the foundation of agrobacterium- mediated genetic transformation. With cotyledons including part cotyledonary node fromBrassica napus as explants, a regeneration system was established. The content of this system was that cotyledons including part cotyledonary node from five days age of rapeseed seedlings were cut as explant and then were cultured in the MS media supplemented with 3 mg/L 6-BA, and five days later, shoot regenerated from the explant. The frequency of shoot regeneration was 100% . Based on the new regeneration system of cotyledon with cotyledonary node, aBnTFL1 RNAi vector constructed from pFGC5941 vector was transformed intoBrassica napus successfully by agrobacterium mediation in the research. The whole transformation period from seeding to getting rooted resistant seedlings was 60- 70 days. Compared with 100- 130 days period of traditional transformation based on regeneration culture of cotyledon without cotyledonary node, this new transformation method obviously shortened transformation period.