Mitochondrial DNA haplogroups The Buryats have a diverse pool of
mitochondrial DNA, with about 83.7% (247/295) belonging to haplogroups of
Eastern Eurasian origin or affinity and about 16.3% (48/295) belonging to haplogroups of
Western Eurasian origin or affinity. The most common Eastern Eurasian mtDNA haplogroups among present-day Buryats are
D4 (approximately 29% of the total Buryat population),
C (approximately 16.6%), and
G2a (approximately 11%). The most common Western Eurasian mtDNA haplogroups among the Buryats are
H (approximately 6.8%) and
U (approximately 5.4%). Another mtDNA study of Buryats shows they have 24% (6/25) of West Eurasian maternal lineages.
Y-chromosome DNA haplogroups Lell et al. (2002) tested a sample of thirteen Buryat males collected in Kushun village,
Nizhneudinsk District,
Irkutsk Region, representing the Buryats of the Sayan-Baikal upland. The Y-chromosomes of these individuals were assigned to the following haplogroups: 6/13 = 46.2% O-M119, 3/13 = 23.1% N-Tat, 2/13 = 15.4% N-DYS7Cdel(xTat), 1/13 = 7.7% C-M48, 1/13 = 7.7% F-M89(xK-M9). This sample entirely lacks C-M407 and instead has a great proportion of
O-M119; thus, it appears very different from published samples of Y-DNA collected from Buryats east of Lake Baikal. Derenko et al. (2006) tested a sample of 238 Buryat males and found the following Y-DNA haplogroup distribution: 4/238 = 1.7% P*-92R7(xQ-DYS199/M3, R1-M173), 2/238 = 0.8% R1*-M173(xR1a-SRY1532b), 5/238 = 2.1% R1a1-M17, 3/238 = 1.3% N*-LLY22g(xTat), 45/238 = 18.9% N3-Tat, 152/238 = 63.9% C-RPS4Y/M130, 4/238 = 1.7% F*-M89(xG-M201, H-M52, I-M170, J-12f2, K-M9), 1/238 = 0.4% G-M201, 1/238 = 0.4% I-M170, 21/238 = 8.8% K*-M9(xL-M20, N-LLY22g, P-92R7). Boris Malyarchuk, Miroslava Derenko, Galina Denisova,
et al. (2010) retested 217 of these 238 Buryats and found that they were 148/217 (68.2%) haplogroup C-RPS4Y711/M130, including 117/217 (53.9%) C3d-M407, 18/217 (8.3%) C3∗-M217(xC3a-M93, C3b-P39, C3c-M77, C3d-M407, C3e-P53.1, C3f-P62), and 13/217 (6.0%) C3c-M77. Fourteen of the 217 Buryats (6.5%) had STR haplotypes belonging to the "star cluster" in C3*, from which it might be inferred that they most likely belonged to C2a1a3-P369/M504. Karafet et al. (2006) tested a sample of 81 Buryat males and found that they belonged to the following Y-DNA haplogroups: 45/81 = 55.6% C-M217(xM86), 4/81 = 4.9% C-M86, 1/81 = 1.2% G-M201, 1/81 = 1.2% J-12f2, 2/81 = 2.5% N-P43, 23/81 = 28.4% N-M178, 2/81 = 2.5% O-LINE, 3/81 = 3.7% R-M207. Karafet
et al. (2018) retested the same sample of Buryat males (minus the G-M201 singleton) and found that they belonged to the following haplogroups: 4/80 = 5.0% C2a1a2a-M86, 5/80 = 6.3% C2a1a3-P369, 40/80 = 50.0% C2b1a1a1a-M407, 1/80 = 1.3% J2a1-P354(xJ2a1a-L27), 2/80 = 2.5% N1a2b1-P63(xP362), 23/80 = 28.8% N1a1a1a1a3a-P89, 2/80 = 2.5% O2a1b-JST002611, 1/80 = 1.3% R2a-M124, 1/80 = 1.3% R1a1a1b1a-Z282, 1/80 = 1.3% R1b1a1b1a1a2-P312(xL21). Kim et al. (2011) reported the following Y-DNA haplogroup distribution in a sample of "Mongolians (Buryats)": 16/36 = 44.44% C2-M217, 1/36 = 2.78% D1a1a-M15, 1/36 = 2.78% F-M89(xK-M9), 9/36 = 25.00% N-M231, 1/36 = 2.78% O1b2-SRY465(x47z), 1/36 = 2.78% O2a-M324(xO2a1b-JST002611, O2a2-P201), 6/36 = 16.67% O2a2-P201, 1/36 = 2.78% R-M207. Kharkov et al. (2014) examined blood samples obtained from a total of 297 ethnic Buryats, separated into eight geographical groups according to the location of sample collection: Okinsky district (N = 53) (southwest of the Republic of Buryatia, ethnoterritorial group of Oka Buryats); Dzhida (N = 31) and Kyakhta (N = 27) (south, ethnoterritorial group of Selenga Buryats); the Kizhinga (N = 64) and Eravninsky (N = 30) regions (east, ethnoterritorial group of Khorin Buryats); Kurumkan village (N = 23) (north, ethnoterritorial group of Barguzin Buryats); Ulan-Ude and Khuramsha (30 km west of Ulan-Ude) (N = 26) (ethnoterritorial group of Kudarinsk Buryats); and Aginskoe village (N = 44) (Agin–Buryat Autonomous Region of Chita, Agin Buryats). For the statistical treatment, samples from Ulan-Ude and Khuramsha village were united into one group designated as "Ulan-Ude". The authors found significant differences among eastern Buryats (Khorin Buryats from Kizhinga and Eravninsky districts of Buryatia plus Agin Buryats from Agin-Buryat Okrug of Zabaykalsky Krai), southern and central Buryats (Selenga Buryats from Dzhida and Kyakhta plus Kudarinsk Buryats from Ulan-Ude and Khuramsha), and southwestern and northern Buryats (Oka Buryats from Okinsky district of Buryatia plus Barguzin Buryats from Kurumkan village). Similar to the Buryat samples examined by Malyarchuk
et al. (2010) and Karafet
et al. (2018), the southwestern and northern Buryat samples of Kharkov
et al. (2014) exhibited an extremely high frequency of haplogroup C2-M407: 48/76 = 63.2% C3d-M407, 14/76 = 18.4% N1c1-Tat, 4/76 = 5.3% O3a3c*-M134(xM117), 3/76 = 3.9% C3*-M217(xM77, M86, M407), 2/76 = 2.6% C3c-M77/M86, 2/76 = 2.6% O3a3c1-M117, 2/76 = 2.6% R1a1a-M17, 1/76 = 1.3% N1b-P43. In contrast, the eastern Buryat samples of Kharkov
et al. (2014) exhibited an extremely high frequency of haplogroup N-Tat: 102/138 = 73.9% N1c1-Tat, 19/138 = 13.8% C3d-M407, 5/138 = 3.6% C3c-M77/M86, 4/138 = 2.9% E, 3/138 = 2.2% C3*-M217(xM77, M86, M407), 2/138 = 1.4% R1a1a-M17, 1/138 = 0.7% O3a*-M324(xM7, M134), 1/138 = 0.7% O3a3c1-M117, 1/138 = 0.7% R2a-M124. The southern and central Buryat samples of Kharkov
et al. (2014) exhibited a significant proportion of C3*-M217(xM77, M86, M407), which may be related to Y-DNA subclades that often have been observed among Mongols in Mongolia, while also exhibiting both N-Tat and C-M407 with moderate frequency: 26/84 = 31.0% N1c1-Tat, 19/84 = 22.6% C3d-M407, 16/84 = 19.0% C3*-M217(xM77, M86, M407), 8/84 = 9.5% R1a1a-M17, 7/84 = 8.3% R2a-M124, 4/84 = 4.8% C3c-M77/M86, 4/84 = 4.8% O3a*-M324(xM7, M134).), and it mostly belongs to a subclade (N-F4205) that reaches its maximal frequency among Buryats, but which also has been found in some other
Mongolic peoples as well as in
Siberian Tatars,
Tsaatan, Kazakhstan, Uzbekistan, Ukraine, and Poland. N-F4205 is estimated to share a common ancestor with N-B202, which has been found in many present-day inhabitants of
Chukotka, approximately 4,600 (95% CI 3,700 5,500) years before present. Haplogroup
C3d (M407) is found mainly among the northern and southwestern Buryats,
Barghuts,
Hamnigans,
Soyots,
Kazakh Khongirad, and Dörbet
Kalmyks.
Nuclear DNA genetic history A large scale genetic study from 2021 shows that the Buryats, as well as other
Mongolic ethnic groups, such as
Mongols, have nearly exclusively East-Eurasian (East Asian-related) genetic ancestry (≈95% to 98%), which can be largely traced back to Neolithic millet agriculturalists of
Northeast Asia, but also
Paleo-Siberians, and "Yellow river farmers" from around the
Yellow River region of Northern
China. Genetic evidence shows that Northeast Asian like ancestry massively expanded westwards during the
Bronze Age and
Iron Age in several waves. Although Buryats are closer to their Mongolic and Tungusic-speaking neighbors, out of the major East Asian ethnic groups, they are genetically closest to the
Koreans, followed by
Northern Han,
Japanese and
Southern Han, in that order, according to FST genetic distance measurements. ==Subgroups==