Figure 2.

Abundance of bacterial genera in teeth and petrous bones. The total number of classified reads after removing rare (n < 10) classified reads was 394,874 and 315,166 in tooth and petrous datasets, respectively. (a) Classified bacterial genera in tooth (648 genera) and petrous bone (492 genera) datasets, which had at least 10 identified reads. (b) Classified bacterial genera displaying at least 10 times more reads in tooth compared to petrous bone (left) or in petrous bone compared to tooth (right)