Figure 1.
Distribution of collection sites and Bayesian skyline plot.
Sampling locations of Carcinus genus in Europe and demographic histories of all C. aestuarii and C. maenas groups using Bayesian skyline plots are shown. Reported are the plots of Ne (effective population size multiplied per generation time) against time in years from present. Mean Ne is shown as a solid black line and light blue lines enclose the 95% highest posterior density interval. Samples are labelled as in Table 1. The map shows the groups identified by AMOVA and MDS analyses for C. aestuarii (circles) and C. maenas (squares), coded in different colours.
Table 1.
Diversity indices within C. aestuarii and C. maenas.
Figure 2.
MultiDimensional Scaling analysis (MDS).
Plots from MDS analysis for all C. aestuarii locations based on pairwise linearized genetic distance (FST/(1- FST)) values are shown. Samples are labelled as in Table 1. Groupings have been circled for clarity.
Table 2.
Analysis of Molecular Variance (AMOVA).
Figure 3.
Consensus Trees of the Carcinus genus.
Trees showing inferred rates and times of the most recent common ancestor (tMRCA) of C. aestuarii (red) and C. maenas (blue) assuming a total tree height of 5.59 MY. tMRCAs are reported above the branches, and posterior support for the corresponding node, below. (a) Estimates obtained using phylogenetic priors and only unique haplotypes, and (b) Using demographic priors and all sequences.
Table 3.
Demographic analyses.