Figure 3
From: Functional requirements driving the gene duplication in 12 Drosophila species
Box plot comparing the mean Ka/Ks ratios of paralog gene pairs and ortholog gene pairs. (A), (B) and (C) Ka/Ks ratios of species-specific duplicates. (D) Ka/Ks ratios of lineage-specific duplicates. The top bar is maximum observation, the lower bar is minimum observation, the top of box is third quartile, the bottom of box is lower or first quartile, the middle bar in box is median value.