Extended Data Fig. 5: Phylogenetic tree of the opsin gene family.
From: The genome of Nautilus pompilius illuminates eye evolution and biomineralization
Phylogenetic tree was constructed by MrBayes method as described above. The melatonin receptor clade was set as an outgroup. Based on the topological structure, the ancestor of opsin divided into different clades: r-opsin (Annelid r-opsin, Mollusc r-opsin, melanopsin, and canonical r-opsin)/C-opsin/Go-opsin (Xenopsin, Nerropsin, Go opsin, and Retinochrome) clade. One r-opsin (EVMG007539) and one retinochrome (EVMG008353) were identified in the N. pompilus genome and marked in red.
