Additional file 1.

A phylogenetic tree of EVC and EVC2 sequences. The tree was constructed with the Fitch-Margoliash algorithm using a Poisson genetic distance and global optimization with bootstrapping. Bootstrap values at internal nodes not supported at 100% are provided. Species abbreviations: Bf, Branchiostoma floridae; Hs, Homo sapiens; Lg, Lottia gigantea; Mm, Mus musculus; Nv, Nematostella vectensis; T, Trichoplax adhaerens; Tr, Tetraodon nigroviridis; and, Xt, Xenopus tropicalis.

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Blair et al. BMC Biology 2011 9:14   doi:10.1186/1741-7007-9-14