However, the dispersal of A haplotypes seems to be predomestic, and Y-chromosomal data show considerable geographical partitioning.
Three Y-chromosomal haplotypes belong to two haplogroups, Y1 and Y2 (Lenstra 2005; Pereira et al. in press).
Y2 has not been found in Switzerland and Germany and is scarce in Italy, while it is predominant elsewhere.