Fig. 2
From: Complex signatures of genomic variation of two non-model marine species in a homogeneous environment
Genetic differentiation displayed in PCoA plots, calculated from non-outlier SNPs (a, c) and outlier SNPs (b, d) for the limpet, S. granularis (a, b) and the urchin, P. angulosus (c, d) populations. Population abbreviations are provided in Table 1