Fig. 6. Diversity and holobiont associations of microbial taxa demonstrate clear overlap between coral and CCA microbiomes and distinct macroalgal holobiont communities.
a Non-metric Multidimensional Scaling (NMDS) of coral (n = 35), CCA (n = 36), and macroalgae (n = 22) samples based on an unweighted UniFrac distance matrix produced from 36,009 Amplicon Sequence Variants (ASVs) (PERMANOVA Sample Type R2 = 0.16; p < 0.001). b NMDS plot of coral genera Porites (n = 15), Monitipora (n = 15) and Pocillopora (n = 5). c NMDS plot of macroalgae genera Halimeda (n = 3), Galaxaura (n = 5), and Jania (n = 5) (“other” refers to the less sampled algae genera (n = 9)). d Heatmap shows standardized (z-scored) summed relative abundance for each Family of Bacteria (rows, organized by sample type association and Class) across samples (columns, organized by sample type). Included are all abundant, widespread Bacteria families (found in at least 1/3 of samples with maximum relative abundance >2%) exhibiting significant differences in mean relative abundance among coral, CCA and macroalgae tissue samples. At right is the distribution of relative abundance among the 93 samples for each Family.