Figure 1

Bayesian assignment probabilities for (a) K = 2 and (b) K = 3 revealed by STRUCTURE based on 20 microsatellite loci. Analysis including the 400 sampled individuals. Each color depicts a cluster and each vertical bar represents an individual with the probability of membership to a cluster. Colors correspond to (a) P. elegans sensu stricto: purple, and cryptic species: green; and (b) P. elegans sensu stricto (blue and red), and cryptic species (green)”.