Fig. 5: Phylogenetic analyses of subunits 4 and 7 of RNA polymerase.

a A maximum likelihood tree of subunit 4 of RNA polymerase in selected Viridiplantae species. b A maximum likelihood tree of subunit 7 of RNA polymerase in selected Viridiplantae species. The tree was constructed by maximum likelihood using 500 bootstrap replicates, values ≥20% are shown on internal branches. For species designations of sequence IDs, see Supplementary data S3.