Dec 4, 2012

Y-chromosome variation in Tajiks and Iranians

Annals of Human Biology
Boris MalyarchukT Grzybowski

Abstract

The purpose of this study was to characterize Y-chromosome diversity in Tajiks from Tajikistan and in Persians and Kurds from Iran. Y-chromosome haplotypes were identified in 40 Tajiks, 77 Persians and 25 Kurds, using 12 short tandem repeats (STR) and 18 binary markers. High genetic diversity was observed in the populations studied. Six of 12 haplogroups were common in Persians, Kurds and Tajiks, but only three haplogroups (G-M201, J-12f2 and L-M20) were the most frequent in all populations, comprising together ~60% of the Y-chromosomes in the pooled data set. Analysis of genetic distances between Y-STR haplotypes revealed that the Kurds showed a great distance to the Iranian-speaking populations of Iran, Afghanistan and Tajikistan. The presence of Indian-specific haplogroups L-M20, H1-M52 and R2a-M124 in both Tajik samples from Afghanistan and Tajikistan demonstrates an apparent genetic affinity between Tajiks from these two regions. Despite the marked similarities between Y-chromosome gene pools of Iranian-speaking populations, there are differences between them, defined by many factors, including geographic and linguistic relationships.

  • References25
  • Citations3

References

  • References25
  • Citations3

Citations

Mentioned in this Paper

Short Tandem Repeat
Chromosomes, Human, Y
Chromosomes
Genetic Equilibrium
Genes, Y-Linked
Alleles
Tetranucleotide Repeats
Variation (Genetics)

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