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Position: Home > Articles > Agrobacterium-mediated Transformation Factors of Blueberry Jiangsu Journal of Agricultural Sciences 2008,24 (5) 90-94

蓝浆果农杆菌介导法基因转化条件研究

作  者:
刘捷;杨丽娜;章镇;蔡斌华;陶建敏
单  位:
南京农业大学园艺学院
关键词:
蓝浆果;农杆菌介导;基因转化;gus基因;PCR检测
摘  要:
以蓝浆果品种蓝丰的叶片为转化受体,通过对农杆菌侵染时间、共培养时间、外植体暗培养时间、卡那霉素(Km)选择压以及头孢霉素(Cef)浓度等因素研究,确定转化的最佳试验参数。试验结果:农杆菌侵染5 m in,共培养4 d,暗处理21 d时gus基因瞬时表达率最高;在筛选初期添加Km 20 mg/L、Cef 250 mg/L,既能得到不定芽,又达到筛选的目的。利用GUS组织化学染色、PCR扩增方法对蓝浆果的Km抗性植株进行检测,初步证实AtNHX1基因已经整合到2株蓝丰株系基因组中。
译  名:
Agrobacterium-mediated Transformation Factors of Blueberry
作  者:
LIU Jie,YANG Li-na,ZHANG Zhen,CAI Bin-hua,TAO Jian-min(College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China)
关键词:
blueberry;Agrobacterium mediation;gene transformation;gus gene;PCR analysis
摘  要:
Transgenic plants were generated from leaves of bluecrop blueberry by Agrobacterium-mediated transformation with AtNHX1 gene,and the following factors affecting transformation were investigated: dipping time,dark-culture time,co-culture time,concentration of kanamycin(Km),and concentration of cefotaxine(Cef).By analyzing the frequency of gus gene transient-expression and bud regeneration rate,the optimal transformation conditions were worked out: 5 min of leaf dipping,4 d of co-culture and 21 d of dark-culture.Resistant buds could be regenerated and selected on primary selection medium supplemented with Km 20 mg/L and Cef 250 mg/L.PCR and GUS analysis confirmed that AtNHX1 gene was integrated into the genome of two bluecrop plants.

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