Figure 4

Plots and regression of genetic distance (FST/(1−FST)) on geographical distance (km) between pairs of P. ariasi populations, for nuclear loci: (a) EF-1α, (b) AAm20, and (c) AAm24. Symbols of pairwise population comparisons denote: ▪, Morocco versus all others; ▪▪▪, Portugal versus all others except Morocco (that is, France, Spain); +, NW (northwest) Spain versus all others except Morocco and Portugal (that is, France, northeast Spain); ▴, northeast Spain versus all others except Morocco, Portugal and northwest Spain (that is, France); •, France only. Ringed data points indicate from left to right: Lot (LNP and RME) with northeast Spain, Portugal and Morocco for EF-1α; Lot (LNP and RME) with northwest Spain, Portugal and Morocco for AAm24.