Fig. 11

Cnidarian opsin gene tree. ML topology of all known homologs of the opsin gene family in cnidarian taxa from NCBI Genbank and transcriptome components of A. alata in this study. Assumes the LG + G model of amino acid evolution, as specified as most appropriate by ProtTest v. 3.2. Shimodaira-Hasegawa-like branch support indices are shown at each node. Blue, pink and brown shading correspond to cnidarian opsin groups A, B and C, respectively, recognized by Feuda et al. (2012). Group A is arbitrarily chosen for rooting the topology; Group B is monophyletic, but Group C cannot be given our derived topology. Stars denote opsin transcripts almost exclusively abundant in the A. alata rhopalium sample (comp54829, comp71410) and ovals denote the same in the planulae sample (comp60054, comp69885, comp74859)