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Fig. 4 | BMC Genomics

Fig. 4

From: Gene loss, adaptive evolution and the co-evolution of plumage coloration genes with opsins in birds

Fig. 4

Co-evolution between opsins and the melanin-based plumage coloration genes in birds. Association tests were implemented using the ω-lineage classified as either: accelerated, conserved or neutral. The association between two genes was measured using the proportion of lineages showing the same evolutionary behavior and considering the alternative hypothesis p > 6/16. Significant (p-value < 8.4 x 10−4, **) and strong (p-value < 0.05, *) associations are indicated

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