Fig. 5.

Maximum-likelihood phylogenetic tree of archaeal MAGs from Brother volcano, constructed in GTDB-Tk using 122 archaeal marker genes. SH branch support (0.8 to 1.0) is shown with dark circles. Major clades are collapsed into triangles, and triangle coloring is based on GTDB-Tk phylum-level taxonomic classifications. Individual clades are labeled using NCBI taxonomy with GTDB-Tk nomenclature shown in brackets, and novel clades are named using GTDB-Tk taxonomy. Taxonomic groups containing Brothers volcano MAGs are indicated by blue text, with the number of MAGs shown in parentheses. The scale bar shows expected substitutions per amino acid. The uncollapsed tree used to create this figure is available as SI Appendix, Fig. S4 and at iTOL (29) (https://itol.embl.de/shared/alrlab).