Table 4.

Alignment identity of nine contigs in S4 to corresponding contigs in samples S5-S10.

Genus in S4	S5	S6	S7	S8	S9	S10	Candidate species
Hydrogenophaga	99.8%	-	-	98.1%	-	-	Uncultured Beta Proteobacteria
Gracilimonas	99.5%	-	-	-	-	-	Uncultured Bacteroidetes
Ignavibacterium	90.6%	-	-	92.1%	93.1%	-	N.A.*
Sulfuriculvum	100.0%	-	-	-	-	-	Sulfuriculvum kujiense DSM 16994
Hylemonella	96.2%	-	-	-	-	-	Uncultured bacterium
Acinetobacter	100.0%	-	-	100.0%	-	99.9%	Acinetobacter bereziniae
Gp21	93.3%	-	-	-	-	-	Uncultured Acidobacteria
Phycisphaera	98.89%	99.41%	-	-	-	-	Uncultured bacterium
OD1_genera_incertae_sedis	-	-	-	-	-	-	Uncultured bacterium

The last column shows candidate species of the seven genera in S4. *Alignment identity <97%.