The present invention provides a DNA fragment or promoter for expressing a gene of interest light-repressibly or specifically in the dark. A light-repressible promoter was obtained from the 5′ upstream region of a plant gene expressed light-repressibly or specifically in the dark, and the function of said promoter was extensively analyzed to reveal a cis-element sequence and a core sequence involved in light-repressible expression. An expression cassette comprising a DNA fragment carrying each of these sequences upstream of a gene of interest can be constructed and transfected into a plant cell or a plant to provide a plant cell or a plant that expresses the gene of interest light-repressibly or specifically in the dark.
本发明提供了一种在黑暗中光抑制或特异性表达相关
基因的 DNA 片段或启动子。本发明从在黑暗中光抑制性或特异性表达的植物
基因的 5′上游区域获得了光抑制性启动子,并对所述启动子的功能进行了广泛分析,揭示了参与光抑制性表达的顺式元件序列和核心序列。可以构建一个表达盒,该表达盒由携带上述序列的 DNA 片段组成,将其转染到植物细胞或植物中,从而获得在黑暗中可强光表达或特异性表达相关
基因的植物细胞或植物。