Regulation and Tissue Specific Expression of VHA-c3 of Arabidopsis Thaliana(Chinese)
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摘要: 利用RT-PCR技术检测VHA-c基因在拟南芥中的表达，结果表明VHA-c3基因在拟南芥的果荚、花、叶、茎和根中都有表达，但是，在叶中的表达量远远高于其它的组织.以GUS基因作为报告基因构建了不同长度的VHA-c3基因启动子缺失突变体，利用农杆菌介导的瞬时表达系统检测GUS基因的表达，研究发现在VHA-c3基因起始密码子上游2812-2 234 bp之间的区域內存在着控制VHA-c3基因高表达的转录调控元件.Abstract: Gene expression of VHA-c was detected in Arabidopsis silique, flower, leaf, bolt, root. However, the expression level of VHA-c3 was much higher in leaves than in the other tissues. Analysis of the putative promoter of VHA-c3 was carried out in tobacoo leave system. A series of the promoter mutants were constructed in which various extents of VHA-c3 promoter were placed upstream of the GUS gene in vector pC1305.1. The expression of GUS was analyzed by Agrobacterium-mediated transient expression system.It was found that a 2 812 bp promoter region has high gene expression capacity. And there is a high potential key cis-element for leaf-specific expression between 2812-2 234 bp region.
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Key words:
- V-ATPasec subunitVHA-c3promoter /
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