Fig. 1

Maximum Likelihood (ML) phylogeny of COI haplotype sequences of Callinectes sapidus. Maximum Likelihood phylogeny showing the relationships among COI haplotypes of C. sapidus. The colour legend on the left shows the sampling locations of each haplotype featured in the analyses. Support values at nodes are represented by bootstrap values (> 70), highlighted in bold text. In light blue, clusters of invasive Mediterranean haplotypes. The figure was edited following the pipeline mentioned in the “Bioinformatics” methodological section.