Fig. 5.
(A–D) Scatterplots depicting the correlation between estimates of 4-fold π and the fraction of nearly neutral sites (0 < Nes < 1) across A. alpina populations (n = 10). Spearman’s rank correlation rho (ρ) values and the statistical significance of the association between these variables are shown for (A) vegetative pollen, (B) pollen tubes, (C) sperm, and (D) 10,000 genome-wide randomly selected genes (*P < 0.05, **P < 0.01, ***P < 0.001). (E–H) Comparison of the estimates of the fraction of nearly neutral sites between predominantly outcrossing (n = 4) and selfing (n = 5) populations for each data set: (E) vegetative pollen, (F) pollen tubes, (G) sperm, and (H) 10,000 genome-wide randomly selected genes (*P < 0.05, Wilcoxon rank-sum test).