Fig. 4
From: Metagenomics of urban sewage identifies an extensively shared antibiotic resistome in China
Overall profile of microbial diversity of the sewage samples from Chinese WWTPs. Diversity of the microbiome was evaluated by using OTUs with 97% similarity cutoffs. a Rarefied Chao 1 index at a sequencing depth of 22,149 showing significant difference of α-diversity between summer and winter samples (mean ± SD; ANOVA; *P < 0.05; **P < 0.01). b NMDS analysis showing the overall pattern of microbial communities (Adonis test, P < 0.01). c β-diversity of microbial communities computed with weighted UniFrac indices within/between the summer and winter samples (mean ± SD; ANOVA; *P < 0.05; **P < 0.01.). d Spearman’s rank correlations between the Bray-Curtis similarity of microbial communities and geographical distance (n is the number of comparison)