Additional file 18: Figure S4.

Maximum likelihood tree of 156 known fluorescent proteins, including our 11 newly identified sequences using RaxML. Shows the relationships of the major groups of known fluorescent proteins. Major lineages cluster together, although Ctenophore and Hydrozoa do not form a monophyletic group. Within Anthozoa class, order Ceriantharia (orange); Actinaria (red); Pennatulacea (dark green); and Scleractinia (black); Hydrozoa (purple); Copepoda (light green); Ctenophora (blue); Chordata (turquoise blue), most basal group; Newly identified sequences are colored blue within Scleractinia. The alignment was 1,000 times bootstrapped and B. floridae was the out-group.

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Pooyaei Mehr et al. BMC Genomics 2013 14:546   doi:10.1186/1471-2164-14-546