Fig. 2
From: Positive selection on panpulmonate mitogenomes provide new clues on adaptations to terrestrial life
Detection of significant physicochemical amino acids changes using TreeSAAP. This analysis was performed on the genes that were shown to be under positive selection by PAML. Regions above the z-score of 3.09 were significantly different than assumed under neutrality. Only the highest significant category (8) is shown. This category represents a significant change in the equilibrium constant (ionization of COOH) property. a cob, b nad5. Asterisks indicate regions under positive selection according to PAML and TreeSAAP (sites 308 and 512)