Fig. 2
From: Genomes reveal marked differences in the adaptive evolution between orangutan species
Autosomal Ne history inferred by pairwise sequentially Markovian coalescent (PSMC) analysis. For each orangutan sampling area, one high-coverage (≥ 20x) genome is plotted. Color codes match those of Fig. 1. The x-axis shows time scaled in years, assuming a generation time of 25 years and an autosomal mutation rate of 1.5 × 10−8 per site per generation. The gray arrow indicates the arrival of modern humans on Sundaland (~ 60–50 ka) [61], the black arrow shows the Toba supereruption (~ 73 ka) [59]