Figure 3.

28S rRNA. Neighbour-joining phylogram of a 1,060 bp region of the 28S rRNA gene for 23 P. imperialis individuals, 14 other Pleistodontes species and an outgroup taxon, Platyscapa soraria. Percentage bootstrap support (1000 replicates) is indicated above branches. Unlabelled branches had bootstrap support of less than 50%.