Fig. 1. Chimpanzee exome dataset distribution, sample size and coverage.
Top panel: Hominini phylogenetic tree highlighting chimpanzee subspecies with estimated evolutionary split times (62, 82) (thousands of years ago (kya)) and pairwise FST between subspecies (65). Main panel: map of West, Central and East Africa indicating the location of sample sites, sample sizes and mean exome sequencing read depth per sample. Each point represents a sample site except for five geographically close sites sampled at Comoé, two at Taï and two at Bakoun-Sobory. The geographic distribution of each subspecies is shown (green=central, orange=eastern, red=Nigeria-Cameroon, blue=western) (1) with major rivers and lakes indicated in light blue. The sample sizes and populations in the final filtered dataset used for selection analyses are shown in Fig. 3.