玉米Ubi-1启动子驱动挪威鼠Hspa4基因植物表达载体的构建 |
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引用本文: | 沈进娟,李俊卿,蔡平钟,王贵学,王闵霞,张志雄. 玉米Ubi-1启动子驱动挪威鼠Hspa4基因植物表达载体的构建[J]. 农业生物技术学报, 2009, 17(4) |
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作者姓名: | 沈进娟 李俊卿 蔡平钟 王贵学 王闵霞 张志雄 |
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作者单位: | 1. 四川省农业科学院生物技术核技术研究所;2. 重庆大学;3. 重庆大学生物工程学院、四川农科院生物技术核技术研究所;4. 四川农科院生物技术核技术研究所;5. 重庆大学生物工程学院; |
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摘 要: | 根据Genbank中挪威鼠(Rattus norvegicus)Hspa4基因序列(登录号:NM 153629)和玉米Ubi-1启动子序列(登录号:DQ141598 )设计引物,采用RT-PCR和PCR技术分别进行克隆。测序及同源性分析结果表明:Hspa4基因片段含有2530bp,编码840个氨基酸;获得的启动子Ubi-1序列大小为1992bp;克隆的序列与相应原序列同源性分别为99.96%和99.55%。以植物表达载体pCAMBIA1301质粒为基础,成功构建了植物表达载体pCAMBIA1301-Ubi-Hspa4,为利用Hspa4基因改良植物抗逆性打下了基础。
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关 键 词: | 挪威鼠 hspa4基因 Ubi-1启动子 克隆 植物表达载体 |
收稿时间: | 2007-09-10 |
修稿时间: | 2007-10-19 |
Construction of plant expression vector of Hspa4 gene from Rattus norvegicus driven by maize ubi-1 promoter |
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Abstract: | Hspa4 gene of Rattus norvegicus (Accession No.:NM 153629) and Ubi-1 promoter of maize (Accession No:DQ141598) were respectively cloned by RT-PCR and PCR technology. The sequencing and homologous analysis results showed that Hspa4 contains 2523bps and encodes 840 amino acids and the maize ubi-1 contains 1992bps. The cloned sequences have 99.96% and 99.55% identity with their corresponding sequences published. Based on the plant expression vector pCAMBIA1301, we successfully construed pCAMBIA1301-Ubi-Hspa4, which would be useful for improving plant tolerance to environmental stresses. |
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