Table 1.

Correlation of rpS3 gene abundances from metagenomic read mapping with relative abundance of IPL signatures across samples. Primary lipids are direct correlations, secondary lipids are those that correlated with primary lipids.

Organism classification based on rpS3 gene	Primary lipid	Secondary lipid
Ca. Huberarchaeum crystalense	2G-1uns-ext-AR	1G-1pentose-AR, 2G-ext-AR, C30:0-PG
Ca. Forterrea multitransposorum	C36:4-PC, C44:12-DGCC
Bacteria	C44:12-DGTA	C32:2-DGTA, C30:1-DGTA, C32:3-DGCC, C32:3-DGTA, C32:4-DGTA, C34:4-DGCC, C34:5-DGTA, C34:6-DGTA, C36:5-DGCC, C36:6-DGCC, C36:6-DGTA, C36:7-DGTA, C36:8-DGTA, C37:2-DGTA, C38:7-DGCC, C40:10-DGTA, C42:11-DGTA, C42:11-PC, C36:7-DGCC
Bacteria	C63:3-DPG
Bacteria	lyso_C18:2-DGTA
Bacteroidetes	C36:3-PE, C36:4-PE	C30:1-PE, C34:3-PE, C34:4-PE, C30:2-PE, C32:4-PE, C32:5-PE
Citromicrobium	C32:1-2Gly-DAG, C32:2-2Gly-DAG, C34:4-2Gly-DAG, C34:5-2Gly-DAG, C34:6-2Gly-DAG, C36:6-2Gly-DAG, C36:7-2Gly-DAG, lyso_C20:4-DGCC	C38:7-2Gly-DAG, C42:11-DGCC, C30:1-2Gly-DAG, C30:2-2Gly-DAG, C32:3-2Gly-DAG, C38:9-DGCC, C61:0-DPG, C38:8-2Gly-DAG
Flavobacteriaceae	C63:4-DPG	C29:0-PE
Flavobacteriaceae	C65:4-DPG
Gallionellaceae	C25:0-OL, C26:0-OL, C26:1-OL, C27:0-OL, C27:1-OL, C29:1-OL, C30:0-OL	C30:1-OL, C32:2-OL, C28:1-OL, C28:0-OL, C34:2-OL, C29:0-OL, C28:1-PE, C30:2-OL, C33:2-PE
Gallionellaceae	C38:6-PC	C34:1-DGCC, C34:2-PC, AEG_C36:2-2G
Gallionellaceae	C62:3-DPG, C64:3-DPG, C66:4-DPG	C33:3-DGTS, C68:4-DPG
Hydrogenophilceae	C60:3-DPG, C64:4-DPG
Proteobacteria	C58:1-DPG, C62:4-DPG
Proteobacteria	lyso_C21:4-DGTS	C30:2-DGTS
Proteobacteria	lyso_C22:6-DGTS	lyso_C21:5-DGTS, lyso_C16:2-DGTS
Falkowbacteria (OD1)	lyso_C16:0-DGTS
Kaiserbacteria (OD1)	lyso_C16:0-DGTA	lyso_C16:0-DGCC
Kaiserbacteria (OD1)	lyso_C20:4-DGTS	lyso_C16:1-DGTS, lyso_C18:3-DGTS
Parcubacteria	C30:0-DGCC	lyso_C16:3-DGTS
Parcubacteria	C47:15-DGTA	C36:5-PG, C36:4-PG
Parcubacteria	lyso_C16:2-DGCC, lyso_C18:3-DGCC, lyso_C18:4-DGCC, lyso_C20:5-DGCC	lyso_C20:5-DGTA, lyso_C16:1-DGTA, lyso_C16:1-DGCC