Fig. 7

P. copri abundance in human faeces determined by 16S rRNA gene sequencing and by 16S rRNA qPCR using the P. copri_16S_4 primer set and universal 16S primers (left: bar graph; right: scatter plot). There is a correlation (r2 = 0.66, p < 0.01, n = 15) between the relative abundance of P. copri determined by qPCR and the relative abundance determined by 16S rRNA gene sequencing