Fig. 2.

The relative abundances of GH-encoding genes summarized according to catabolic substrates and taxonomic assignment. A Changes in the relative abundance of GH-encoding genes over the incubation period show two distinct gene categories: an early group containing mainly the glucosidase-encoding genes that increased rapidly and a later group including genes for galactosidase, xylosidase, xyloglucanase, rhamnosidase, fucosidase, arabinosidase, mannosidase and xylanase that increased gradually over the incubation period. The error bars indicate the standard deviations of three biological replicates. B The relative abundances of GH-encoding genes in five main bacterial phyla (At, Actinobacteria; V, Verrucomicrobia; Ac, Acidobacteria; F, Firmicutes; B, Bacteroidota). The relative abundances of GH-encoding genes (in gene copies per million) were estimated by mapping metagenomic reads against each individual GH-encoding gene