Figure 6.

Phylogenetic distribution of rcd-1 in fungi and bacteria. Maximum likelihood tree of ∼940 rcd-1 homologs. Branches of the phylogenetic tree are color-coded in accordance with the taxonomic rank at order level for the species from which the various rcd-1 sequences have been retrieved. Order names are indicated in the panel next to the phylogenetic tree. The gene family expansion in Sordariaceae family (order Sordariales), which display the various rcd-1-1 and rcd-1-2 Neurospora alleles from this study, is highlighted. Branches corresponding to the four bacterial sequences are indicated with red stars. Bacterial phylogenetic orders are indicated with the letter (b) in the legend of the figure. Sequences from species with no clearly established phylogeny at order level, are grouped under “unclassified”.