Figure 2

Genetic structure of Porites spp. around Seychelles. (a) Phylogenomic relationships of 241 samples (based on 182,511 LD-filtered SNPs) with ultrafast bootstrap support values shown at the internal nodes; (b) structure plot for the Y clade (area highlighted green on phylogenetic tree; 78 samples); (c) PCA of Y clade; (d) structure plot for the X clade (area highlighted blue on phylogenetic tree; 130 samples); (e) PCA of X clade. Sites are coloured lightest in the southern (outer) Seychelles, darkest in the northern (inner) Seychelles. Ellipses on PCA figures represent the clusters assigned by admixture analysis [as per (b,d)].