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Phylogenetic tree constructed with OR and TAAR cichlid repertoires and non TAAR-class A GPCRs. Amino-acid sequences of 117 TAARs, 247 non- TAAR class A GPCRs (Additional file 2) and 506 cichlid ORs [14] were aligned with MAFFT [25] and PHYML [26] and the tree constructed with FigTree [28]. Each group of receptors constitutes well separated clade in this tree.
