
Asiangymmax
Sartuul
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Western Mongolians — particularly groups like the Oirats, Zakhchin, and other Mongol populations from western Mongolia — generally have 20–40% West Eurasian admixture on average, depending on the specific group and region.
1.
Breakdown of Admixture (Approximate):
2.
Evidence from Ancient DNA:
3.
Modern Genetic Studies:
4.
Regional Variation:
Let me know if you’d like to see this modeled in qpAdm-style proportions or want a PCA/ADMIXTURE visual reference.
1.
Breakdown of Admixture (Approximate):
- West Eurasian ancestry: ~25–40%
- This often includes components like:
- Yamnaya-related Steppe ancestry (from Bronze Age migrations)
- Iranian-related ancestry (BMAC/Zagros-like)
- Minor traces of Anatolian/CHG-like ancestry in some models
- This often includes components like:
- East Eurasian ancestry: ~60–75%
- Primarily Ancient Northeast Asian (ANA), Baikal Hunter-Gatherer, or Amur HG-like ancestry
2.
Evidence from Ancient DNA:
- Bronze Age Steppe populations, especially Sintashta, Andronovo, and Scythians, contributed significantly to West Eurasian input in the steppe and Altai regions.
- Xiongnu and Xianbei-era individuals from western Mongolia already showed substantial West Eurasian admixture due to Steppe pastoralist gene flow.
- Modern Western Mongols retain this ancestry but also have additional East Asian input from later Turkic and Mongolic expansions.
3.
Modern Genetic Studies:
- Studies like Jeong et al. (2019), Damgaard et al. (2018), and Wang et al. (2021) model modern Oirats and Kazakh-adjacent Mongols as mixed populations with:
- ~30% Steppe_MLBA (e.g., Sintashta-like) or West Eurasian ancestry
- The rest being ANA or Northeast Asian
4.
Regional Variation:
- Oirats in westernmost Mongolia (e.g., Bayan-Ölgii, Khovd):
- West Eurasian ancestry: 30–40%
- Khalkha Mongols (more central/eastern):
- West Eurasian ancestry: <15–20%
- More East Asian dominant
Let me know if you’d like to see this modeled in qpAdm-style proportions or want a PCA/ADMIXTURE visual reference.