Fig. 5

Prokaryotic communities in the serpentine soils from the SEP obtained by the sequencing of the V4 region of 16S rRNA and considering the two main landscapes present (Table 1). a Relative abundance per phylum of all the sequences obtained in the entire sampling area associated with the SEO. In brackets the number of prokaryotic phylotypes (OTUs). “Other” included Crenarchaeota (7 OTU, 1795 sequences), Bacteroidetes (20 OTU, 3205 sequences), BRC1 (1 OTU, 94 sequences), Cyanobacteria (2 OTU, 261 sequences), Entotheonelleota (8 OTU, 7601 sequences), Firmicutes (2 OTU, 718 sequences), GAL15 (10 OTU, 10,863 sequences), Latescibacteria (27 OTU, 11,142 sequences), Nitrospirae (6 OTU, 3598 sequences), Thermotogae (1 OTU, 145 sequences), and unclassified Bacteria (22 OTU, 8782 sequences). b Shannon rarefaction curve. c Prokaryotic communities per phylogenetic class in each location sampled. Total OTUs obtained: 2286, total sequences read: 1,377,510; u.c.: unclassified class