Figure 4. Genetic structure analyses of Camponotus renggeri (yellow) and Camponotus rufipes (red) workers from Mogi- Guaçu (Brazil), using microsatellites. A, model-based assignment of individuals to the most likely number of clusters (K = 2) using STRUCTURE software. B, model-based assignment of individuals to different classes of hybrids or 'pure' species. Each individual is represented by a vertical line and the colours indicate the probability of the individual being assigned to a group in (A), or a hybrid or 'pure species' class in (B). C, scatterplot of the model-free principal coordinates analysis considering the two first principal coordinates (PCo1 and 2).