Fig. 5From: Genomes of the dinoflagellate Polarella glacialis encode tandemly repeated single-exon genes with adaptive functionsEvolutionary history of ice-binding domains in P. glacialis and dinoflagellates. Only a small part of the 1080-taxon maximum likelihood protein tree is shown. Support values, based on 2000 ultrafast bootstrap approximations, are shown at the internal nodes. Only values > 50% are shown. The unit of branch length is the number of substitutions per siteBack to article page