Figure 7.

Neighbor-joining trees representing GBA gene and psGBA in humans, chimpanzees, and gorillas. Tree robustness was assessed by 1000 bootstrap iterations, and the percentage of trees with a given node present in the bootstrap tree is shown in the figures (italic numbers on the branches). For the lower tree, only bootstrap fractions equal or larger than 50% are shown. Arrows indicate outgroup rooting with human GBA (in the middle tree, which links human and chimpanzee psGBA sequences) and with chimpanzee psGBA (in the lower tree).