Figure 2
From: Freshwater mussels house a diverse mussel-associated leech assemblage
Origin of parasitic leeches from the mantle cavity of freshwater mussels based on two-locus fossil-calibrated phylogeny (four partitions: three codons of COI+ 18S rRNA) calculated under a lognormal relaxed clock model and a Yule process speciation implemented in BEAST 1.10.4. Node bars are 95% HPD of the divergence time. Black numbers near nodes are node ages (Myr). Stratigraphic chart according to the International Commission on Stratigraphy, 2019. Red numbers near nodes are BPP values inferred from BEAST. Divergence times and host reconstructions for weakly supported nodes (BEAST BPP <0.75) are omitted. Host reconstructions are shown for the clades of interest. Proposed obligate inhabitants of the mantle cavity of freshwater mussels are colored red. Free-living leech taxa with a hidden stage inside the mantle cavity of freshwater mussels are colored green. Free-living leech species are colored blue. Outgroup taxa are not shown.
