Fig. 6From: Steroidal saponin profiles and their key genes for synthesis and regulation in Asparagus officinalis L. by joint analysis of metabolomics and transcriptomicsThe hypothetical main biosynthetic pathway of steroidal saponins in asparagus. the USSP genes were depicted in green and DSSP genes were marked in blue, besides, the average expression (R, S and F of green and purple asparagus, respectively) were shown in the heatmaps. The one-step reactions were represented with solid lines while the dash lines represented multi-step ones, and the arrows with the question marker represented the less possible step(s). The changes in each reaction on metabolites were highlighted in red in the structural formulaBack to article page