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Sliding window analysis of the genomic region encompassing the β-globin gene cluster. Data were obtained from 1000 Genomes Project, representing 1,092 individuals from 14 populations: three African (ASW, LWK, and YRI), five European (CEU, FIN, GBR, IBS, and TSI), three Asian (CHB, CHS, and JPT) and three American-admixed populations (CLM, MXL, and PUR). Both π (A) and Tajima’s D (B) were calculated in 2 kb windows with increments of 150 bp.
