Sep 3, 2009

Genetic diversity and the emergence of ethnic groups in Central Asia

BMC Genetics
Evelyne HeyerTanya Hegay

Abstract

In this study, we used genetic data that we collected in Central Asia, in addition to data from the literature, to understand better the origins of Central Asian groups at a fine-grained scale, and to assess how ethnicity influences the shaping of genetic differences in the human species. We assess the levels of genetic differentiation between ethnic groups on one hand and between populations of the same ethnic group on the other hand with mitochondrial and Y-chromosomal data from several populations per ethnic group from the two major linguistic groups in Central Asia. Our results show that there are more differences between populations of the same ethnic group than between ethnic groups for the Y chromosome, whereas the opposite is observed for mtDNA in the Turkic group. This is not the case for Tajik populations belonging to the Indo-Iranian group where the mtDNA like the Y-chomosomal differentiation is also significant between populations within this ethnic group. Further, the Y-chromosomal analysis of genetic differentiation between populations belonging to the same ethnic group gives some estimation of the minimal age of these ethnic groups. This value is significantly higher than what is known from historical records for...Continue Reading

  • References13
  • Citations24

Citations

Mentioned in this Paper

Genetic Drift
Short Tandem Repeat
Y Chromosome
DNA, Mitochondrial
Indonesia Zebrafish
Aggregation
Genetics, Population
Kazak
Chromosomes, Human, Y
Cell Differentiation Process

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