Genetic chart: Turkish, Kazakh, Uyghur, Mongol

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This genetic chart tells us a lot about the historical genetic contribution of steppe nomads from Central Asia to anatolia. Aswell as from the central Asia itself. 

The purest groups are no doubt the Chinese, Nganasan, Armenian. 

The slightly mixed group are Mongolians with Turkish people being even more mixed than Mongolians

Predominately Asian Kazakh

Predominately Caucasian are Uyghurs but they also have heavy Asian admixture. Tajiks are Caucasian with small Caucasian admixture but not that small either.

It seems different region of Turkey produce DNA results. I mean it's no surprise though Turks from instanbul are only 5-15% East European ( an Greek region with lack of Turkic migration ).  Other regions seems to preserve higher higher Turkic DNA unlike other historical Turkey/Kurdish region where some samples only reach 0-12%.

In this study. Turkish are roughly from 9% to 25% East Asian 

According to this study average Uyghur Caucasian/European DNA can be 60%, 52%, 47% , 30% depending on the location.

http://en.wikipedia.org/wiki/Uyghur_people

Genetics

"The Uyghurs are a Eurasian (mixed ancestry) population with Eastern and Western Eurasian anthropometric and genetic traits. Uyghurs are thus one of the many populations of Central Eurasia that can be considered to be genetically related to European and East Asian populations. However, various scientific studies differ on the size of each component.[92] One study, using samples from Hetian (Hotan) only, found that Uyghurs have 60% European ancestry and 40% East Asian ancestry.[93] A further study showed slightly greater European component (52% European) in the Uyghur population in southern Xinjiang, but slightly greater East Asian component (47% European) in the northern Uyghur population.[94] Another study used a larger sample of individuals from a wider area, and found only about 30% European component to the admixture.[95] A study on mitochondrial DNA (therefore the matrilineal genetic contribution) found the frequency of western Eurasian-specific haplogroup in Uyghurs to be 42.6%.[96]

The admixture may be the result of a continuous gene flow from populations of European and Asian descent, or may have been formed by a single event of admixture during a short period of time (the hybrid isolation model). If a hybrid isolation model is assumed, it can be estimated that the hypothetical admixture event occurred about 126 generations ago, or 2,520 years ago assuming 20 years per generation.[93][97] "

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According to the paper by Li et al.:

" the western East Asians are more closely related to Uyghurs than the eastern East Asians. ... STRUCTURE cannot distinguish recent admixture from a cline of other origin, and these analyses cannot prove admixture in the Uyghurs; however, historical records indicate that the present Uyghurs were formed by admixture between Tocharians from the west and Orkhon Uyghurs (Wugusi-Huihu, according to present Chinese pronunciation) from the east in the 8th century CE. The Uyghur Empire was originally located in Mongolia and conquered the Tocharian tribes in Xinjiang. Tocharians such as Kroran have been shown by archaeological findings to appear phenotypically similar to northern Europeans, whereas the Orkhon Uyghur people were clearly Mongolians. The two groups of people subsequently mixed in Xinjiang to become one population, the present Uyghurs. We do not know the genetic constitution of the Tocharians, but if they were similar to western Siberians, such as the Khanty, admixture would already be biased toward similarity with East Asian populations. "

Edited by MrButlerKing - 05-Sep-2015 at 19:40