Fig. 1
From: Selective forces acting during multi-domain protein evolution: the case of multi-domain globins
Maximum likelihood trees of the multimeric globin genes from the three groups of metazoans analyzed. a Branchipolynoe hemoglobin phylogram; b NEMATODE globins’ phylogram; c Barbatia globins’ phylogram. In all cases GTR was used as the nucleotide substitution model. ω values are shown in bold over/under the branches, and N*dN/S*dN ratios are within brackets. Mg myoglobin, SD single-domain, D1–D4 domains 1 through 4. Insets (adapted from Weber and Vinogradov 2001) represent the quaternary structure of globins to which the correspondent tree is right bellow. Size of the represented assemblies is depicted next to each inset.