Uyghurs
Contemporary scholars consider modern Uyghurs to be the descendants of a number of people, including the ancient Uyghurs of Mongolia who arrived at the Tarim Basin after the fall of the Uyghur Khaganate, Iranic Saka tribes, and other Indo-European peoples who inhabited the Tarim Basin before the arrival of the Turkic Uyghurs. DNA analyses indicate that the peoples of central Asia such as the Uyghurs are all mixed Caucasian and East Asian. Uyghur activists identify with the Tarim mummies, remains of an ancient people who inhabited the region, but research into the genetics of ancient Tarim mummies and their links with modern Uyghurs remains problematic, both to Chinese government officials concerned with ethnic separatism, and to Uyghur activists concerned that the research could affect their people's claim of being indigenous to the region.
History of the Uyghur people
In the eastern portion of the Chagatai Khanate, known as the Eastern Chagatai Khanate to Chinese historians and as Moghulistan to Russian historians, the culture of the Karakhanids dominated the largely Muslim state, and the Buddhist populations of the former Karakhoja Idikut-ate largely converted to the Muslim faith. All Chagatai-speaking Muslims, regardless whether they lived in Turpan or Kashgar, became known by their occupations as Moghols (ruling class), Sarts (merchants and townspeople) and Taranchis (farmers). This triple division of classes among the same Muslim Turkic folk also existed in Transoxiana, regardless whether they were under Timurid or Chagatay.