Figure 1: Alpha- and beta-diversity comparisons of the gut microbiomes of the Matses, Tunapuco and Norman populations.
From: Subsistence strategies in traditional societies distinguish gut microbiomes
Analyses were performed on 16S rRNA V4 region data, with a rarefaction depth of 10,000 reads per sample. (a) Alpha diversity comparisons based on phylogenetic and non-phylogenetic richness (Faith’s PD, observed species). The urban population has significantly lower microbial richness compared with the two rural populations. This observation is robust and observable even with <5,000 reads per sample (Supplementary Fig. 2). Whiskers in the boxplot represent the range of minimum and maximum alpha diversity values within a population, excluding outliers (b) Principal coordinates analysis of weighted UniFrac distances. Proportion of variance explained by each principal coordinate axis is denoted in the corresponding axis label. The rural and urban populations show clear separation.
