TABLE 4.

Pairwise comparison and number of significantly (P < 0.01) over- and underrepresented differentially abundant genes annotated with the EggNOG, CAZy, and NCyc databases of soils with different Hg contamination levels (low, moderate, high). Total counts: EggNOG 61,591, CAZy 39,632, and NCyc 8,210.

Pairwise comparison	EggNOG		CAZy		NCyc
	Overrep.	Underrep.	Overrep.	Underrep.	Overrep.	Underrep.
Low Hg vs. moderate Hg	53	63	35	24	8	6
Low Hg vs. high Hg	103	103	127	87	31	16
Moderate Hg vs. high Hg	0	8	0	15	0	4