Fig. 3
From: Ubiquitin fusion proteins in algae: implications for cell biology and the spread of photosynthesis
Phylogeny of integral membrane proteins (IMP). Ubiquitin-IMP fusions are indicated by a filled square next to a given taxon. OTUs are colored according to the eukaryotic super-group to which they belong with Rhizaria in light blue, Alveolata in blue, Stramenopiles in dark blue, Haptophyta in purple, Viridiplantae in green, Amoebozoa in gold, Fungi in brown, Euglenozoa in pink, other Excavata in orange and Bacteria in grey. The maximum-likelihood tree shown was inferred using 442 OTUs and 155 sites under the model LG + R4 (as selected using a MFP model test according to BIC) and is rooted in midpoint. Only bootstrap support values ≥80% are shown (based on 5000 UFboot iterations). Filled circles along branches indicate maximum bootstrap support. The scale bar indicates 0.2 substitutions per site