[Variability of short tandem repeats on the human Y chromosome]

Nine rare (biallelic) mutations and six short tandem repeats (STR) mapping to the nonrecombining portion of the Y chromosome were genotyped in 734 males from different geographical regions inhabited by the contemporary Armenian population. The analysis of molecular variance (AMOVA) showed that 48.9% of total STR genetic variation was explained by the differences between the haplogroups isolated based on biallelic polymorphism, whereas only 1.3% of genetic variation could be attributed to the differences between the geographic groups.