Figure 3

ITS-1 tree. Unrooted single most parsimonious tree of nuclear ITS-1 variation from a subset of Radix individuals from neighbouring populations in Switzerland (Figure 2). The numbers at the nodes indicate the bootstrap support from 1000 replicates. The three highly supported terminal clades highlighted in gray are congruent to the MOTU as inferred from mitochondrial COI variation (Figure 1).