Fig. 7. Microbial phylogenetic distance relative to cultured organisms.

Percent identity values (PIVs) of archaeal (A) and bacterial (B) ASVs relative to their closest cultured relative for the studied biomes and realms. Each square in the density plot represents one ASV and depicts its PIV (y axis) and RSA (x axis, logarithmic). The color gradient shows how many ASVs have identical PIV and RSA. The more yellow, the more ASVs are represented by the square.