Fig. 1
From: Positive selection in octopus haemocyanin indicates functional links to temperature adaptation
Bayesian phylogenetic tree illustrating species and family relationships among the analysed octopods. Bayesian analysis was performed on concatenated data sets of the mitochondrial genes cytochrome oxidase subunit I (COI) and cytochrome oxidase subunit III (COIII). Colours represent the climatic origin. Nodes were labelled with posterior probabilities and maximum likelihood bootstrap support values following a backslash, above a threshold of 0.7 or 0.5 respectively. Asterisks mark values of 100. Identical colours mark octopods of the same climatic origin. Sample codes are indicated in brackets.