Fig. 1: Putative triterpenoid and ergosterol biosynthetic pathway in G. lingzhi.

The representative triterpenoids of Ganoderma spp were marked in red, such as ganoderic acid A, D, and F. The dotted line with three arrows in ergosterol and GA biosynthetic pathway indicates the multiple enzymatic and speculative steps, respectively. Abbreviated word information is shown in Supplementary Table 2.