Table 2. SIMPER analyses, OTUs contributing >0.5% to the dissimilarity among CCA species Hydrolithon boergesenii (HB), Titanoderma prototypum (TP), Paragoniolithon solubile (PS) and Porolithon pachydermum (PP).
| OTU # |
Mean % abundance (# of samples containing OTU) |
% contr.to dissim. | Order | Closest taxonomic match—Greengenes | % ID | Closest match source—NCBI (accession #) | % ID | |||
|---|---|---|---|---|---|---|---|---|---|---|
| HB | TP | PS | PP | |||||||
| 1504 | 12.10 (5) | 4.06 (1) | 3.64 (5) | 2.61 (5) | 3.90 | Actinomycetales | Propionibacterium acnes | 96.5 | Deep-sea sediment (JN914883.1) | 98 |
| 4606 | 0.00 (0) | 0.26 (4) | 0.05 (1) | 5.87 (4) | 1.59 | Vibrionales | Vibrio harveyi | 97.5 | Coral-associated (KC545338.1) | 97 |
| 4092 | 0.90 (4) | 0.00 (0) | 3.89 (3) | 0.23 (5) | 1.22 | Bacillales | Staphylococcus epidermidis | 96.1 | Deep-sea sediment (JN913945.1) | 96 |
| 1778 | 3.64 (5) | 0.98 (1) | 1.48 (5) | 1.29 (5) | 1.17 | Actinomycetales | Propionibacterium acnes | 99.2 | Ocean drilling core (AB803950.1) | 99 |
| 198 | 2.20 (3) | 0.53 (1) | 0.00 (0) | 0.00 (0) | 0.69 | Bacillales | Planomicrobium spp. | 95.7 | River sediment (HF545332.1) | 98 |
| 2743 | 0.93 (4) | 0.00 (0) | 1.82 (2) | 0.11 (5) | 0.68 | Bacillales | Staphylococcus epidermidis | 97.3 | Coral-associated (FJ809136.1) | 99 |
| 911 | 0.00 (0) | 0.00 (0) | 2.41 (2) | 0.00 (0) | 0.64 | Oscillatoriales | Oscillatoria spongeliae | 85.5 | Coral-associated (JQ347397.1) | 94 |
| 5734 | 0.00 (0) | 0.00 (0) | 2.31 (1) | 0.00 (0) | 0.61 | Nostocales | Anabaena cylindrica | 85.8 | Coral-associated (JQ347397.2) | 93 |
| 6908 | 0.00 (0) | 2.26 (4) | 0.00 (0) | 0.00 (0) | 0.60 | Rhodobacterales | Rhodobacteraceae spp. | 88.6 | Coral-associated (GU119607.1) | 94 |
| 635 | 0.00 (0) | 0.06 (2) | 0.01 (1) | 2.06 (4) | 0.56 | Vibrionales | Vibrio harveyi | 97.1 | V. harveyi/V. coralliilyticus genome (CP009467.2/CP009617.1) | 97/97 |
| 1555 | 1.19 (2) | 0.98 (1) | 0.00 (0) | 0.00 (0) | 0.54 | Bacillales | Planomicrobium spp. | 96.8 | Bovine rumen (EU845583.1) | 98 |
| 1706 | 0.49 (4) | 0.04 (1) | 1.66 (3) | 0.13 (5) | 0.53 | Bacillales | Staphylococcus epidermidis | 96.1 | Human skin (JF030251.1) | 96 |
| 8276 | 0.00 (0) | 1.93 (4) | 0.00 (0) | 0.00 (0) | 0.51 | Planctomycetales | Blastopirellula spp. | 87.7 | Nuclear plant biofilm/marine sponge (HM596372.1/FJ652502.1) | 99/96 |
| 580 | 0.00 (0) | 0.00 (0) | 0.07 (1) | 1.85 (1) | 0.51 | Rhodobacterales | Roseovarius spp. | 94.0 | Coral reef microbial mat (AB294940.1) | 95 |
Abbreviations: CCA, crustose coralline algae; OTU, operational taxonomic unit; SIMPER, similarity percentage.
Closest taxonomic match based on percent similarity to sequences in the Greengenes database. Closest match source based on a BLAST search of the NCBI database. The highest mean % abundances are highlighted in bold for each OTU.