ACKR1 and malaria: Among regions with strong signatures of selection (Table 2 and Data S1), we observed overlaps with genes that previously had been reported to be targets of strong selection such as DARC (FY) [30] (YRI (test) vs. CEU (reference)) and ABCC11[31] (EAS vs. YRI/CEU) that are associated with malaria resistance and earwax type, respectively.