Fig. 4
From: Prediction of BMI traits in the Chinese population based on the gut metagenome
Differential analysis of gut microbiota in various BMI groups at the gene level. (a) The Shannon index shows α-diversity. (b) Principal coordinate analysis (PCoA) based on the Bray‒Curtis distance shows β-diversity (Wilcox test, NS: p ≥ 0.05, *: p < 0.05, **: p < 0.01, ***: p < 0.001). (c) (d) Contigs with significant differences in SNP density between different BMI groups. HM: overweight group; NM: normal weight group; LM: underweight group