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. 2021 May 12;594(7862):234–239. doi: 10.1038/s41586-021-03532-0

Fig. 3. Evolutionary context of a key human gut symbiont.

Fig. 3

A time-measured phylogenetic tree of M. smithii reconstructed on the basis of the core genome using a Bayesian approach under a strict clock model. Purple and orange violin plots illustrate the 95% HPD values (in parentheses) of estimated mean ages for the diversification of M. smithii and the split of the lineage leading to ancient M. smithii (highlighted in red), respectively.