Figure 5

Relationship between Jost’s D genetic distance and the shortest sea distance considering: (a) all populations (mantel R = 0.507; p-value < 0.05); (b) only North Atlantic (black dots and black line; mantel R = 0.873; p-value < 0.05), Atlantic-Mediterranean transition (White dots and red line; mantel R = 0.157; p-value > 0.05) and Mediterranean populations (grey dots and green line; mantel R = 0.610; p-value < 0.05).