chromosome painting, to follow the genetic admixture, only a small Northeast Asiatic DNA signal among Bulgarians (2,4%) might correspond to the whole genetic legacy left from the invasions of the Bulgars. The DNA studies of the Chuvash people, who speak a Turkic language (Chuvash), show that they are genetically related to Caucasians, Mediterraneans, and Middle Easterners, partially Central or Northern Europeans (Finnic), but with little Central Asian-Altaic gene flow. The DNA studies of the Tatars, Bashkirs and Russians in Chelyabinsk Oblast show European and Finnic impact on the Tatars; Caucasoid and East Asian impact were reported for the Bashkirs. Some aspects of genetic relationships were found between Tatars and Chuvashes, as well Bulgarians, which could support the view that the Tatars may be descendants of ancient Bulgars. It is currently unknown with which haplogroup the Bulgars should be associated; some scholars consider the possibility that only a cultural and low genetic influence was brought into the region. A 2015 Bulgarian mtDNA study on 13 samples from the 8th–10th century suggests a Western Eurasian matrilineal origin for Proto-Bulgarians. The study established that "Proto-Bulgarians are positioned among South-Eastern and Southern European populations including modern Bulgarians. Proto-Bulgarians are genetically distant from Northern and Western Europeans and populations from the Near East and Caucasus. On the greatest distance from Proto-Bulgarians are Volga-Ural and Arabic populations." The study further mentions that "...proto-Bulgarians are genetically similar to modern Bulgarians and to certain South-Eastern European as well as Italian populations." Until now there's still not enough archaeogenetic data to confirm Turkic, Ugrian and/or Sarmatian origin and admixture of Proto-Bulgarian elite, however, Todor V. Chobanov and Svetoslav Samov in their research of available archaeological and genetical data presuppose "Proto-Bulgarians were a mixture of Late Sarmatians and older Caucasus populations, closely related to the Alans and preserving their genetic inheritance, even after arriving on the Balkans and mixing with Slav peoples and the remnants of the local Late Antiquity peoples". The paleoanthropological material from all sites in Volga region, Ukraine and Moldova attributed to the Bulgars testify complex ethno-cultural processes. The material shows the assimilation between the local population and the migrating newcomers. In all sites can be traced the anthropological type found in the Zlivka necropolis near the village of Ilichevki, the district of Donetsk, of brachiocranic Caucasoid with small East Asian admixtures but with Bulgar males being more Mongoloid than females. Despite the morphological proximity, there is