Plot of the two first principal coordinates (Principal Component Analysis, PCA). PCA is performed on a database resulting from merging our present data (ESI and WSI) with data from Pericic et al and with data from Zalloua et al regarding Lebanon. Population codes: AEI=Aegean islands; ALB=Albanian; ALG=Algerian (Arab); AND=Andalusian; BAS=Basque (French and Spanish); BEL=Belgian; BOS=Bosnian; CAT=Catalan; CRO=Croatian; CYP=Cypriot; DUT=Dutch; ESI=eastern Sicilian; FRE=French; GRE=Greek; HER=Herzegovinian; HUN=Hungarian; I-APU=Italian (Apulia); I-CAL=Italian (Calabria); I-SAR=Italian (Sardinia); LEB=Lebanese; MAL=Malta; MOR=Moroccan (Arab); ROM=Romanian; SER=Serbian; SLO=Slovenian; SPA=Spanish; TUN=Tunisian; TUR=Turkish (Istanbul); WSI=western Sicilian
