Extended Data Figure 7. Scan for genomic locations where the great majority of present-day humans share a recent common ancestor.

We carried out PSMC analysis on 40 pairs of haploid genomes chosen to sample some of the most deeply divergent present-day human lineages. We recorded the time since the most recent common ancestor (TMRCA) at each position, and rescaled to obtain an estimate of absolute time (Supplementary Information section 12). A: Distribution across the genome of the fraction of TMRCAs below specified date cutoffs. For the 100 kya cutoff, the maximum fraction observed anywhere in the genome is 68%. B: Distribution across the genome of the date T at which specified fractions of sample pairs are inferred to have a TMRCA less than T. C: Percentile points of the cumulative distribution function of B.