FIGURE 2.

Members of the same lichen genus share similar microbial communities. Data based on the 177 OTUs with significant differences in abundance found by ALDEx2. (A) Prevalence matrix based on OTU presence/absence. A WPGMA hierarchical clustering method was used to group the significantly different OTUs (shown on bottom) on a dendrogram based on a Bray-Curtis dissimilarity matrix. Each row represents the presence/absence of OTUs in a given lichen sample (shown left). (B) Principal Coordinates Analysis (PCoA) based on the Bray-Curtis index shows microbiomes of lichens Cora and Cladonia differentiated from other lichens.