Fig. 2From: Population structure and microscale morphological differentiation in a freshwater snail from the Chilean AltiplanoHaplotype network of Heleobia ascotanensis from the Ascotán Saltpan generated using COI gene sequences. The segments on the lines represent the number of mutational steps. The size of the circumferences represents the relative frequency of each haplotype. A, B, D and E indicate divergent haplotypes, and C indicates the higher-frequency haplotype (details in main text)Back to article page