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Fig. 1 | BMC Evolutionary Biology

Fig. 1

From: Genetic basis of brain size evolution in cetaceans: insights from adaptive evolution of seven primary microcephaly (MCPH) genes

Fig. 1

Evidence of positive selection across the phylogeny of cetartiodactyla identified by branch and branch-site models. The three genes identified to be under positive selection are marked with different colors: WDR62 (green), CDK5RAP2 (pink), and ASPM (blue). Significant positive selection identified by free-ratio, two-ratio and branch-site models are highlighted and indicated by line, rectangle and triangle, respectively. The ω value greater than 1 for individual lineage according to free-ratio and two-ratio are shown

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