Figure 5: Heatmap of the major allele frequency for each SNP in the six populations of S. tinca.

(a) considering the 4,155 polymorphic SNPs, (b) considering the 3,934 neutral SNPs, (c) considering the 78 outlier SNPs obtained from coalescent simulations and (d) considering the 19 outlier SNPs obtained from bayesian simulations. Dendrograms group population on the left axis and SNPs on the top axes according to frequency similarity. KAP: Karaburun Peninsula, Albania; VIR: Island of Vir, Croatia; TRE: Tremiti Islands, Italy; TOG: Torre Guaceto, Italy; OTR: Otranto, Italy and POC: Porto Cesareo, Italy.