Fig. 2From: Differences in the gut microbiomes of dogs and wolves: roles of antibiotics and starchAbundance of different types of antibiotic resistance genes (ARG) in the gut microbiomes of dogs and wolves. Histograms of the relative abundance of top 20 ARGs in each group. Significance of the differences was tested by Holm–Sidak method and indicated by asterisks (*P < 0.05; **P < 0.01; ***P < 0.001)Back to article page