Fig. 3

Genetic structure in geographic space of T. elegans. Maps of posterior probabilities isoclines of genetic clusters membership with its respective populations belonging to a panmictic unit correspond to the six lineages of T. elegans detected by GENELAND analyses. Last column: synthetic map of the K-origin of each pixel. Blue line is the Maipo river such a geographic boundary between the northern and southern clades; other six columns: relative posterior probability of belonging to each K cluster. Black dots show sampled populations and lighter background colours indicate higher posterior probability of membership to the given K cluster. Thinner black lines are isoclines of inclusion probability and numbers are posterior probabilities values. Cluster 1 correspond to Loa lineage (Clade A), Cluster 2 correspond to T. e. coquimbensis (Clade B), Cluster 3 correspond to Aconcagua lineage (Clade C), Cluster 4 correspond to T. e. elegans (Clade D), Cluster 5 correspond to South 1 lineage (Clade E), and Cluster 6 correspond to South 2 lineage (Clade F). Northern clade encompasses the Loa, T. e. coquimbensis, Aconcagua and T. e. elegans lineages and southern clade encompasses the South 1 and South 2 lineages