Efficient chimeric promoters derived from full-length and sub-genomic transcript promoters of Figwort mosaic virus (FMV)

Addition of multiple repeats of the FS3 upstream activation sequence (FS3-UAS, −270 to −60) intra-molecularly to the TATA containing core-domain of the FS3 (−151 to +31) promoter resulted in 2–3-folds enhanced promoter activity. The chimeric promoter, FS3-UAS-3X with maximum activity, showed 3.31 times stronger activity in root vascular tissue compared to FS3 promoter and could be used efficiently in translational research.