Figure 2

Geographic distribution of nSSR alleles. The colours correspond to the genetic clusters defined by STRUCTURE analysis at K = 3. The proportions of different groups in pie-charts are based on membership coefficients at K = 3. A shape file with genotype proportions in the different countries was generated in DIVA-GIS v7.5.0.0 (http://www.diva-gis.org/). The shape file was then used to generate the map in ArcGIS v10.2.2 (Environmental Systems Research Institute, Redlands, CA, USA) (http://www.esri.com/).