Fig. 5
Maximum likelihood (Phyml, LG + I + G) phylogenetic tree of voltage-gated proton channels (protein sequences were previously aligned by Clustal Omega). HvCN1.1 and HvCN1.2 are separated into two semicircles. Cnidarian species include Stylophora pistillata (Spi), Acropora digitifera (Adi), Nematostella vectensis (Nve), Aiptasia pallida (Apa), Corallium rubrum (Cru), Dendronephthya gigantea (Dgi), Amplexidiscus fenestrafer (Afe), and Discosoma sp. (Dsp). Mollusca species include Crassostrea gigas (Cgi). Echinodermata species include Strongylocentrotus purpuratus (Spu) and Acanthaster planci (Apl). Chordata species include Homo sapiens (Hsa) and Ciona intestinalis (Cin). Placozoa species include Trichoplax adhaerens (Tad). Porifera calcarea species include Sycon ciliatum (Sci). Porifera Homoscleromorpha species include Oscarella carmela (Oca)