Fig. 2
From: Host genetic variation in mucosal immunity pathways influences the upper airway microbiome
a Alpha diversity. Alpha diversity measurements for microbial communities from the nasal vestibule and the nasopharynx by season. The nasopharynx in the summer (light green) shows the overall largest alpha diversity. *Paired Wilcoxon rank-sum test p < 0.5; **p < 0.01; ***p < 0.001. b Beta diversity. Principal coordinate analysis (PCoA) of the 50 most abundant OTUs derived from Euclidean distance. Nasal site samples show separation in the summer (PC2 p < 2.2 × 10−16). Seasonal samples show separation in the nasal vestibule (PC2 p < 2.2 × 10−16) and in the nasopharynx (PC2 p < 0.0002). Ellipsoids contain 95% of the samples within each group