The present invention relates to a novel expression cassette comprising a nucleic acid sequence encoding an EPSPS. In particular, the present invention relates to a novel expression cassette comprising, in the direction of transcription, functionally linked to one another, a promoter regulatory sequence which is functional in plant cells or plants, a nucleic acid sequence encoding an EPSPS and a terminator sequence which is functional in plant cells or plants, characterized in that the promoter regulatory sequence is a nucleic acid sequence chosen from the promoter regulatory sequences of the CsVMV (Cassava Vein Mosaic Virus) plant virus.