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Description

C2b1a1c is the subclade of the Star Cluster dispersed into Turkic-speaking populations through the administrative, military, and political structures of the Mongol Empire and its successor states. As the Mongol Empire fragmented into the Golden Horde, Chagatai Khanate, and Ilkhanate, C2b1a1-bearing men integrated into local Turkic-speaking populations across Central Asia, the Kazakh steppe, Uzbekistan, and the Uyghur territories of western China. Over the following centuries, many of these lineages were absorbed into Turkic ethnic identities while retaining their Mongolic paternal DNA. The relatively recent MRCA (~1,200 CE) closely matches the peak of Mongol imperial expansion, supporting the historical model of gene flow through military and administrative contact.

Interesting Fact

C2b1a1c is a genetic trace of the political assimilation of Mongol lineages into Turkic cultures — men whose Y chromosomes mark them as patrilineal descendants of the Mongol expansion, yet whose descendants speak Turkic languages and identify as Kazakh, Uzbek, or Uyghur, illustrating how genetic and cultural identity can diverge over just a few generations.

Distribution by Ethnicity

Ethnic distributionRegionFrequencySample
Kazakhs (non-Tore)Central Asia
5%
n=500
KyrgyzCentral Asia
4%
n=200
UzbeksCentral Asia
3%
n=400
BashkirsUrals
3%
n=250
UyghursCentral Asia (Xinjiang)
2%
n=300
TurkmensCentral Asia
2%
n=200

Associated Clans & Tribes

Dynasty
Golden Horde
Eastern Europe / Central Asia
Western successor state of the Mongol Empire; Chinggisid lineages entered Kazakh and Bashkir gene pools through the Golden Horde administrative class
Dynasty
Chagatai Khanate
Central Asia
Central Asian successor state governing Transoxiana and Xinjiang; C2b1a1c carriers integrated into the Uzbek and Uyghur populations of this region
Ru / Lineage
Kerei (Kazakh)
Kazakhstan
Large Kazakh clan with significant Mongol-era ancestry reflected in C2b1a1c frequency

Tags

Mongol EmpireCentral AsiaTurkicKazakhUzbekGolden HordeMedievalCultural assimilation

References

  1. Zerjal et al. (2003) — The Genetic Legacy of the Mongols. American Journal of Human Genetics 72(3), 717–721.
  2. Balaresque et al. (2015) — Y-chromosome descent clusters and male differential reproductive success. European Journal of Human Genetics 23, 1357–1362.
  3. Tarlykov et al. (2013) — Haplotype-based analysis of the Y chromosome in Kazakhstan. Croatian Medical Journal 54(1), 79–84.