Fig. 4: Maximum-likelihood trees of divalent metal transporter (DMT)-like protein sequences obtained from databases.
From: Divalent metal transporter-related protein restricts animals to marine habitats

A tree constructed using metazoan sequences. The tree was rooted using the sequence of a choanoflagellate, Monosiga brevicollis, as an outgroup. Bootstrap values more than 70% are indicated at nodes. The scale bar represents a phylogenetic distance of 0.2 substitutions per site.