Fig. 2: Stephanocoenia intersepta population structure across Florida Keys National Marine Sanctuary.

A Principal component analysis. Color and shape denote sampling site and depth zone, respectively. Larger, opaque shapes represent sample population centroids and smaller, transparent shapes are individuals. B Same plot as A but with samples colored by putative lineage assignment. Samples with <75% assignment to a single lineage were considered admixed. C Same plot as B but showing axis 2 and 3. D Structure plot from ngsadmix analysis. Each bar represents an individual sample and the proportion of each color is the probability of membership to that genetic lineage. White asterisks denote admixed individuals. E Proportion of normalized ITS2 type profiles calculated from SymPortal analysis. Each vertical bar represents one S. intersepta colony and color corresponds to ITS2 type profiles. DIVs in a type profile name are listed in order of abundance with ‘/’ separating DIVs with co-dominance in samples. Bars below each facet indicate the lineage assignment of the coral host.