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—Ratio of site frequency spectra (SFS) of deleterious-to-neutral derived alleles. Relative proportion of deleterious derived allele frequencies in each population, defined by GERP (Davydov et al., 2010) and POLYPHEN-2 (Adzhubei et al. 2010), respectively, compared with derived allele frequencies in neutral genomic regions, defined by Gronau et al. (2011). For comparison, eight individuals from each population were selected.
