Fig. 3. Phylogenetic analysis of rainbow trout (Oncorhynchus mykiss) epithelial calcium channel (ECaC). The phylogenetic tree was constructed using PHYML (maximum likelihood) with support for nodes determined through bootstrapping of 1000 pseudo-datasets. Branches are drawn to scale; the scale bar represents replacement of 5% of the amino acids in the protein alignment. See Table 2 for the description of genes used in this tree; c, chicken; cf, crayfish; d, dog; f, Fugu; h, human; m, mouse; r, rat; rb, rabbit; rt, rainbow trout; x, Xenopus; z, zebrafish.