Figure 7 in Phylogeny of Veneroidea (Mollusca: Bivalvia) based on morphology and molecules

Figure 7. Molecular phylogeny of Veneroidea: a 50% majority-rule consensus tree based on a Bayesian analysis of the 16S rRNA data set and a sampling of 29 401 trees (3 000 000 generations; sample frequency = 100; burn-in = 600; heat = 0.2). Branch lengths are presented in (A) and support indices in (B). Posterior probability values (≥ 90%) are shown above the line; bootstrap proportions (≥ 70%) based on a parsimony analysis (250 replicates, 10 random sequence additions; Tv 2.8: Ti 1) are shown below the line. Sequences obtained from GenBank are indicated by GB following the species name. Multiple sequences are included for five taxa: Ruditapes philippinarum (one from a maternally derived and one from a paternally derived mitochondrial lineage); Circe rivularis (sequences from two specimens from different locations); and Mercenaria mercenaria, Venus verrucosa, and Chamelea gallina (one GB sequence, one newly derived sequence). Taxa designated as outgroups are shown in bold. The hollow circle indicates the node supporting a monophyletic Veneroidea = Veneridae (including Turtonia and the Petricolidae). Labelled nodes (filled circles) refer to specific clades discussed in the text.