Fig. 4

Relative abundance of family-level taxonomic groups. Based on blastn matches to 16S rRNA gene sequences in the SILVA reference database, version 132. Seawater values were obtained from sample GUM061 (Supplementary Table 1). The GM102ARS1, GM102CHS1, SP5ARS3, and GM7ARS4 MAGs did not include any sequences containing the primer-amplified 16S rRNA gene region, so these taxa are not included in this analysis. Relative abundances of these sequences, based on Bowtie2 recruitment of metagenomic reads, are shown in Supplementary Figure 7