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Fig. 6 | BMC Plant Biology

Fig. 6

From: Steroidal saponin profiles and their key genes for synthesis and regulation in Asparagus officinalis L. by joint analysis of metabolomics and transcriptomics

Fig. 6

The 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 formula

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