Transcript levels of core cell cycle related genes in embryogenic and leaf tissues. SE_5D, SE_10D and SE_15D are to represent embryogenic samples collected after 5, 10 and 15 d of in vitro culture, respectively. WT_L: WT leaf tissues. Ash coloured cells denote zero FPKM values (no transcripts detected). The DEGs detected between somatic embryo and leaf tissues are denoted by asterisks.