植物学报 ›› 2000, Vol. 17 ›› Issue (02): 174-178.

• 研究简报 • 上一篇    下一篇

草莓叶片再生芽及遗传转化系统的建立

邓馨 胡文玉   

  1. 1(中国科学院植物研究所 北京 100093) 2(沈阳农业大学 沈阳 110161)
  • 收稿日期:1998-10-30 修回日期:1999-04-03 出版日期:2000-03-20 发布日期:2000-03-20
  • 通讯作者: 邓馨

Establishment of Regeneration and Genetic Transformation System of Strawberry Leaf

DENG Xin HU Wen-Yu   

  1. 1(Institute of Botany, The Chinese Academy of Sciences, Beijing 100093) 2(Shenyang Agricultural University, Shenyang 110161)
  • Received:1998-10-30 Revised:1999-04-03 Online:2000-03-20 Published:2000-03-20
  • Contact: DENG Xin

摘要: 本文从五个草莓品种中筛选了再生频率高的品种M14,并进一步提高其再生频率至100%,单叶盘再生芽数至10.0个;石蜡切片法观察其芽多起源于愈伤组织,少数由叶细胞脱分化后直接形成; 该再生体系用于根癌农杆菌菌株EHA105介导的基因转化,并以14.5%频率得到抗卡那霉素的抗性芽,初步鉴定是转化芽。上述结果表明高频率稳定的草莓品种M14 叶片再生芽及遗传转化系统已经形成,并可以用于转基因研究。

Abstract: An ideal regeneration system from leaf of strawberry cultivar M14 was developed. 10.0 shoots per leaf disc were generated at the rate of 100% within 3 weeks. Histological observations indicated that the shoots regenerated mainly from calli. This regeneration system was used in genetic transformation mediated by Agrobacterium tumefaciens strain (EHA105) carrying the modified pMDG410 plasmid, which contains GUS and NPTⅡgene. Kanamycin_resistant shoots regenerated with the ratio of 14.5% were identified as transgenic shoots.