FIG 5.

The inferred phylogeny of FNR. The maximum-likelihood tree was inferred with IQ-TREE using the LG+F+G4 substitution model and ultrafast bootstrapping. The UFboot support values are indicated at branches when higher than 75%. Euglenophyte species are shown on a green background, and their putative photosynthetic and nonphotosynthetic homologs are depicted. The two forms of plant FNR are indicated: P, photosynthetic; NP, nonphotosynthetic. Accession numbers of sequences included in the analysis are provided in Data Set S1, tab 12.