Real time PCR analysis of CYP450 s in MeJA-treated materials and different plant tissues. CK represents the uninduced material; 6H represents the material treated for 6 h with MeJA; and DS represents dammarenediol-II synthase. The corresponding contigs represented by numbers 1 - 27 are listed in Additional File 6. A) Changes in the gene expression of CYP450 s induced by MeJA. B) The gene expression of CYP450 s in different tissues.