Figure 2

Phylogeographic distribution of C. bicolor haplotypes in Tunisia. a. Haplotype network of C. bicolor inferred from mtDNA data. Haplotypes that revealed no changes of basepairs in the network (e.g. haplotypes 1, 3, 5, and 6) differed in the non-coding region, but due to the impossibility to align this region it was not used for the calculation of the haplotype network. 711 bp of 771 bp were constant. b. Geographic distribution of the different haplotypes. Each small square represents a colony collected in 2001 for which the haplotype (indicated by the accompanying small numbers) was recorded. The triangles depict samples that were collected in 1999 but were included into the phylogeographic analysis. Large coloured squares depict the geographic centers of the clades (GCC). The black square indicates the geographic center of the whole population (GCP).