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Fig. 3 | BMC Biology

Fig. 3

From: The gold-ringed octopus (Amphioctopus fangsiao) genome and cerebral single-nucleus transcriptomes provide insights into the evolution of karyotype and neural novelties

Fig. 3

Phylogenetic analyses of the protocadherin (PCDH) genes in octopus. Maximum-likelihood phylogenetic tree of cadherin genes in A. fangsiao (a) and O. sinensis (b). The octopod protocadherin (PCDH) genes occupy an octopod-specific clade in the phylogenetic tree of both species, which are divided into three groups: the ancestral genes and two subsequent divisions (termed cluster α and β). c The two groups of PCDH in the phylogenetic tree correspond to the two separate clusters in chromosome 13 of A. fangsiao (c) and chromosome 14 of O. sinensis (d). e Two PCDH clusters in O. bimaculoides. The density plot of Jukes–Cantor distances for PCDH genes in A. fangsiao (f), O. sinensis (g), and O. bimaculoides (h). The ratios of α- or β-clustering PCDH genes fallen into each peak are listed over each peak

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BMC Biology

ISSN: 1741-7007

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