Fig. 3
From: Evaluation of fecal DNA extraction protocols for human gut microbiome studies
Diversity metrics of the samples. a Alpha diversity (Shannon’s diversity). b Principal coordinates analysis based on Bray-Curtis distances. The samples were color-coded for the DNA extraction protocols (top) and for individuals (bottom), respectively. c Bray-Curtis distances 1) between samples from the same protocol and different individuals (SP-DI), 2) between samples from different protocols and the same individual (DP-SI: P vs SB, P vs S, and S vs SB), and 3) between samples from the same protocol and the same individual (SP-SI, replicate samples). (* P-value < 0.05, *** P-value < 0.001; Kruskal-Wallis test with Dunn’s multiple comparison test)