Fig. 7

Differences in N-cycling gene families between the two sampling sites and soil profiles

LAV, Val Lavirun; VRS, Villum Research Station; aL, active layer; pF, permafrost

The log₂-fold change (LFC) value pF vs. aL in LAV (A) and in VRS (B) is the log₂ of (gene abundance of pF/gene abundance of aL). The LFC value LAV vs. VRS is the log₂ of (gene abundance of LAV_aL/gene abundance of VRS_aL) for aL (C) and the log₂ of (gene abundance of LAV_pF/gene abundance of VRS_pF) for pF (D). For each pairwise comparison, only genes with a base mean > 50 and p < 0.01 were selected. A list of all selected genes with their relative abundances, NCyc classifications, and associated processes is provided in Additional file 1, Tables S17-20