Real-time PCR analysis of UGT s in MeJA-treated materials and different plant tissues. R represents root; S represents stem; L represents leaf; F represents flower and DS represents dammarenediol-II synthase. The corresponding contigs represented by numbers 1 - 27 are listed in Additional File 6. A) Changes in gene expression of UGT s induced by MeJA. B) The gene expression of UGT s in different tissues.