... and Bulgaria. All six microsatellite lociemployed in this study were highly polymorphic, displaying ahigh number of alleles (from 9 to 76 alleles per locus). Thetotal number of alleles scored ... de- fine the following 5 regions:– Po Valley (populations 1, 2, 3, 4); – Ligurian Mountains (populations 5, 8, 9); – Alps with crystalline soil (populations 6, 7, 13, 15, 1 6); – Alps with calcareous ... the loci usedin our study (FEMSATL04, FEMSATL11 and FEMSATL1 9), thereby excluding the presence of null alleles. We also have tobear in mind that FEMSATL12 is likely to generate null alle-les,...