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Fig. 2 | Zoological Letters

Fig. 2

From: Color vision evolution in egg-laying mammals: insights from visual photoreceptors and daily activities of Australian echidnas

Fig. 2

Results of the dN/dS (ω) test of each branch (between the common ancestor of echidna and platypus and each species) in the monotreme color opsin genes. The best tree topology and ancestral sequences were estimated by the ML method. The trees were routed by ortholog genes of non-monotreme amniotes. Statistical tests were performed using Fisher’s exact test. a LWS gene. b SWS2 gene. OrnAna SWS2 hap1 corresponded to the ancestral sequence; ω of the branch could not be calculated

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Zoological Letters

ISSN: 2056-306X

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