The present invention relates to a chimeric expression promoter comprising at least one nucleic acid sequence derived from a first plant promoter containing a plant vascular expression promoter region, where the plant vascular expression promoter region is replaced with a nucleic acid sequence derived from a second plant promoter and containing a plant green tissue expression promoter region. The present invention also relates to a vector, a cell, and a transgenic plant containing the chimeric expression promoter, as well as a method of nucleic acid expresssion using the chimeric expression promoter.