Additional file 3: of Widespread gene duplication and adaptive evolution in the RNA interference pathways of the Drosophila obscura group

Table S2. MK test of duplicated RNAi genes in D. pseudoobscura-D. miranda. Ds is synonymous divergence, Dn is non-synonymous divergence, Pn is the non-synonymous polymorphisms, Ps is the synonymous polymorphisms, α represents proportion of substitutions that are adaptive, a is the absolute number of adaptive substitutions. Ln is the number of non-synonymous sites, Ls is the number of synonymous sites. Ka is the number of non-synonymous mutations per non-synonymous sites and Ks the number of synonymous mutations per synonymous sites from single randomly chosen strain for each species (Li, 1993 [92] calculated using R package seqinr). Parameter ωa is identical to Ka/Ks ratio except that the numerator only takes adaptive divergence (α * Dn)/Ln)/(Ds/Ls). (XLSX 10 kb)