银杏GbPAL基因启动子表达载体的构建  

Construction of Plant Expression Vector of PAL Promoter in Ginkgo biloba

作　　者：李金宝[1] 唐寅[1] 许锋[1] 程华[2] 李琳玲[2] 程水源[2] 

机构地区：[1]长江大学园艺园林学院,湖北荆州434025 [2]黄冈师范学院经济林木种质改良与资源综合利用湖北省重点实验室,湖北黄冈438000

出　　处：《贵州农业科学》2012年第5期17-19,共3页Guizhou Agricultural Sciences

基　　金：国家自然科学基金项目"银杏叶黄酮关键基因GbPAL1与GbCHS2启动子的克隆与功能研究"(30971974);湖北省自然科学基金项目"银杏叶黄酮合成中两个关键酶基因启动子的克隆与功能分析"(2008CDA061)

摘　　要：为弄清GbPAL启动子调控类黄酮代谢的功能,采用双酶切方法,用BamH I+HindⅢ将GbPALp与植物表达载体pBI121分别酶切纯化,通过T4DNA连接酶将GbPALp片段连接到已切除35S启动子的植物表达载体pBI121上,并转化到农杆菌LBA4404上,然后进行菌落PCR及酶切鉴定。结果表明:扩增到的GbPALp片段成功引入了BamH I和HindⅢ酶切位点,GbPALp酶切后与酶切前的条带大小一致;将酶切后的空质粒和引入酶切位点的目的片段进行连接转化后,含目的基因pBI121:GbPALp:LBA4404菌落培养成功。成功构建了GbPAL基因启动子真核表达载体pBI121:GbPALp。The GbPALp and plant expression vector pBI121 were digested with BamH I ＋ Hind Ⅲ,respectively.Then the purified GbPALp fragment was connected to the plant expression vector pBI121 without 35S promoter by T4 DNA ligase.Finally the pBI121 containing GbPAL gene promoter was successfully transferred into Agrobacterium tumefaciens LBA4404.The transferred A.tumefaciens LBA4404 with pBI121：GbPALp was identified by PCR and enzyme digestion.

关 键 词：银杏 GbPAL启动子 表达载体构建 转化 

分 类 号：S792.95[农业科学—林木遗传育种]