Fig. 4

The gene structure and binding activities of UGT2 genes of two species. a Gene structure of UGT2 in F. esculentum and F. tataricum. Blue square represents CDS. Red square represents UDP-glycosyltransferase domain of UGT2. Black line represents intron. UDP-glycosyltransferase domain of UGT2 gene in two species were completely identical. b Cis-acting element within 1000 bp upstream of the UGT2 gene. Different colored rectangles represent different motifs. c Transient expression assay of luminescence intensity show the different transcription activity of UGT2 in F. tataricum and F. esculentum. The color bar on the right represents the intensity of fluorescence. Representative images of N. benthamiana leaves 72 h after infiltration were shown