Figure 1.
Localisation of sample sites indicated in table S1.
Table 1.
Location, cruise, water depth and number of specimens (N) sequenced.
Figure 2.
DNA maximum-likelihood tree based on COI nucleotide sequences rooted with Glauconome chinensis.
The evolutionary model tested was GTR+I+G [35] (proportion of invariable sites = 0.39, number of substitution rates = 6, gamma distribution parameter = 0.54). Bootstrap values >75% for 1000 replicates are given above branches and clades. Specimens are named based on recent revisions. Colours correspond to genera from Krylova and Salhing (2010). Localisation: A, Atlantic Ocean; ME, Mediterranean Sea; P, Pacific Ocean and W, west; E, east; M, middle.
Figure 3.
1-Ancestral character state reconstruction for the evolution of depth limits (a) and habitat (b) in bivalves based on unweighted parsimony was mapped onto the ML phylogeny.
Character states are represented by colour-coded depth intervals. Branches with equivocal character states are shown in grey.