Fig. 1

Summary of studied populations and haplotypes of C. rionegrensis. a: Map of the studied populations. Underline: provided by this study. Dashed area: suggested distribution for the species [14], IUCN),b: Phylogenetic relationship of C. rionegrensis haplotypes. The Genbank accession numbers and the locality of precedence are indicated (except for the one shared between the towns of Abrogal, Guarida and Nuevo Berlín (1, 3 and 8)). The numbers in the nodes are the posterior probabilities greater than 0.5; c: Red haplotypes of C. rionegrensis. The area of the circle is proportional to its frequency. The crossed lines on the connecting lines represent changes between haplotypes. The number next to each haplotype corresponds to the populations on the map in part a, and the letters correspond to the haplotypes in the tree in part b