Deletional analysis of functional regions of complementary sense promoter from cotton leaf curl virus

摘要

Complementary sense promoter from cotton leaf curl virus (CLCUV) is a novel plant promoter for genetic engineering that could drive high-level foreign gene expression in plant. To determine the optimal promoter sequence for gene expression, CLCuV promoter was deleted from its 5' end to form promoter fragments with five different lengths, and chimeric gus genes were constructed using the promoter deletion.