Overview of local ancestry based analysis. a Location of the 48 populations from seven African ancestry regions used in the analysis; b chromosome painting samples (rows) of chromosome 22 (3392 SNPs) from ten Fula haplotypes show mosaic local ancestry; c chromosome painting samples from all 144 Fula haplotypes, each set of 10 consecutive rows are paintings from one recipient haplotype; d chromosome painting samples from (c) stacked to show ancestry proportions locally along chromosome 22.