Figure 4

Phylogenies based on different parts of the XY1 region. Bayesian consensus chronograms for the 5' (a) and 3' parts (b) of the 6416 bp XY1 alignment. The partitions in a) and b) represent non-recombinant parts that were suggested by GARD from a reduced 9-sequence 4045 bp alignment of the XY1 gene. Values below branches are median ages in million years. Numbers above branches are posterior probabilities (PP)/maximum parsimony bootstrap (MPB) support values for the same alignment but with additional indel characters (values of PP < 0.70 and MPB < 60% are not shown). Hyphens (-) indicate nodes with high posterior probabilities that were not present in the MPB trees. Note that the MBP trees are unrooted, and there is thus only a single internal branch connecting the clades where the BEAST root (*) appears. Horizontal bars represent 95% HPD age intervals. Roman numbers are used to label nodes. Note how the positions of the groups sect. Conoimorpha (C) and S. vulgaris (V) change in the different partitions.