I often hear that Turkish people can genetically be modeled as a mix of Central Asian, Anatolian, and Greek. However, East-European and Caucasian admixtures are always forgotten and I think people underestimate those admixtures among Turkish people. There have been migrations from Balkans and Caucasus to Anatolia. Those migrants mostly settled in Western and Northwestern Turkey and eventually they mixed with the locals. Therefore, especially Western and Northwestern Turks have significant East-European and Caucasian admixtures in terms of DNA.