Genetic structure as inferred with the program STRUCTURE (K = 4).

<p>Different colors represent inferred multilocus genotypes (see text). Clusters are as follows: 1) Chumia/Shapaja/Tarapoto/Cainarachi Valley, 2) Chazuta, 3) Chipaota/Curiyacu/Callanayacu/Ricardo Palma/Achinamisa/Aguas Termales, 4) Sauce, 5) Varadero. Each individual frog is represented by a vertical line, which is partitioned into <i>K</i> +1 segments, with each color representing the individual’s membership coefficient to that group. Chazuta is presented as a separate population in this figure, as it shows a clearly intermediate genotype, but in the optimal grouping derived from STRUCTURE Chazuta is part of cluster 1 (Chumia/Shapaja/Tarapoto/Cainarachi Valley).