Figure 2
Average Morisita-Horn dissimilarity indices among samples of the same individuals, individuals within a couple, and unrelated individuals. Similarity of oral microbiota is indicated by the average Morita Horn’s indices for saliva and tongue of samples from (i) replicates of the same individuals, (ii) the two individuals within a couple before kissing, (iii) the two different individuals within a couple after kissing, and (iv) the different, unrelated individuals.