For each population, the left bar (left axis) gives the average percent expected heterozygosity calculated as the mean of 1−Σp_i² values for the 94 loci. The right bar (right axis) gives the number of private alleles across all 94 loci, where a private allele is present only in that population (considering only those populations in this study). The average sample size (2N, number of chromosomes typed) is given below each population name. Modified from ref. 36 including data in ref. 35; data are in ALFRED⁶⁹ (http://alfred.med.yale.edu). R, Rondonian.