Figure 5.

Search for candidate piperitenone oxide biosynthesis genes. The phylogenetic relationship of the M. suaveolens hapA genome. NTF2 (a) or CYP71D (c) and their orthologous genes were constructed. The expression (log₂(FPKM+1)) of each gene is shown as a heatmap. L: leaf, R: root, S: stem. Correlation of candidate NTF2 (b) or CYP71D (d) genes with the intermediate genes and metabolites of the monoterpene biosynthesis pathway in M. suaveolens. A CYP71D network was constructed with r > 0.8, p < 0.05, and FPKM >1. A NTF network was constructed with r > 0.6, p < 0.05, and FPKM >1. Abbreviations: FPKM, fragments per kilobase of exon model per million mapped fragments.