...size. Among the genes annotated as singleton genes in the reference , Sfi1 showed unexpectedly high variation and population divergence (one-way ANOVA, F(2,21) = 53.57, P < 0.0001 after FDR).Extended analysis of Cwc22, Hjurp, and Sfi1To study the polymorphism of extreme outlier loci in more depth, we...