Fig. 1.—

Diversity and divergence of 497 newt immune genes estimated for all, 4-fold (FFD) and 0-fold degenerate sites (ZFD). (a) Nucleotide diversity (π), (b) divergence from the outgroup (d_xy), (c) Tajima’s D, (d) number of segregating sites (S, gray) and fixed substitutions (Sf, black) between Lissotriton montandoni (Lm) and L. vulgaris graecus (Lvg). Boxplots show medians with upper and lower quartiles. Whiskers indicate the most extreme values which do not exceed the quartile value plus the 1.5 times the interquartile. The outliers are marked as empty dots.