Fig. 6

A Plot of canonical correspondence analysis (CCA) of 16S rRNA gene sequencing from GH and cold, saline, and sulfur-rich environments relating environmental variables to taxonomic composition of the samples (ANOVA F = 1.46 and p-value = 0.003 **). Circles represent total samples, “ + ” indicates individual taxa, “*” represents statistically significant environmental variables of p-value ≤ 0.05. Sample metadata can be found in Table S4. B Plot of canonical correspondence analysis (CCA) of 16S rRNA gene sequencing from GH and additional comparable environments relating temperature and salinity to taxonomic composition of the samples (ANOVA F = 1.001 and p-value = 0.476). Circles represent total samples, “ + ” indicates individual taxa, “***” represents statistically significant environmental variables of p-value ≤ 0.001. Sample metadata can be found in Table S4