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With the advent of genealogical DNA testing, a larger and broader circle of people have begun to claim genetic descent from Genghis Khan owing to dubious and imprecise haplogroup identifications. However, while many of Genghis Khan's agnates' resting places are known (e.g. Shah Jahan in the Taj Mahal), none of their remains have been tested to prove or disprove these theories and debate continues (see below).

DNA evidence

Scientists have speculated about the Y-chromosomal haplogroup (and therefore patrilineal ancestry) of Genghis Khan.

Zerjal et al. (2003) identified a Y-chromosomal lineage haplogroup C*(xC3c) present in about 8% of men in a region of Asia "stretching from northeast China to Uzbekistan", which would be around 16 million men at the time of publication, "if [Zerjal et al's] sample is representative."^[1] The authors propose that the lineage was likely carried by male-line descendants of Genghis Khan, because of its presence in certain ethnic groups rumored to be their descendants. One study published in the Russian Journal of Genetics found that 24% of Mongolians carry this haplogroup, and that it occurs in low frequencies in neighboring Turkic states (with the exception of Kazakhstan).^[2]

A white paper by the American Society of Human Genetics Ancestry and Ancestry Testing Task Force, Royal et al. (2010) observed the Zerjal et al. hypothesis:

Although such a connection is by no means impossible, we currently have no way of assessing how much confidence to place in such a connection. We emphasize, however, that whenever formal inferences about population history have been attempted with uniparental systems, the statistical power is generally low. Claims of connections, therefore, between specific uniparental lineages and historical figures or historical migrations of peoples are merely speculative.^[3]

In a 2017 review paper published in Human Genetics, authors Chiara Batini and Mark Jobling cast doubts on Zerjal's 2003 theory that Genghis Khan is linked to haplogroup C:

Ancient DNA data (Lkhagvasuren et al. 2016) from remains in high-status Mongolian graves dated to 1130–1250 CE revealed MSY lineages belonging to hg R1b, rather than hg C: there are a number of explanations for such findings, but taken at face value, they do not support the Genghis Khan hypothesis for the origin of the widespread Asian expansion lineage (Zerjal et al. 2003).^[4]

Proposed candidate haplogroups and haplotypes

Over the years, following haplogroups have been proposed as candidates:^[5]

Haplogroup C-M217
- C2b1a3a1c2-F5481 (C-M217*-Star Cluster / clade of C2*-ST): Widespread in Central Asia among Kazakhs, Hazaras and ordinary commoner Mongols. The Kerey clan of the Kazakhs have a high amount of the C3* star-cluster (C2*-ST) Y chromosome and it is very high among Hazaras, Kazakhs and Mongols in general.^[6]
  However, in 2017 a Chinese research team suggested that the Y chromosome C-M217*-Star Cluster likely traces back to ordinary Mongol warriors, rather than Genghis Khan, and that "a direct linking of haplogroup C-M217 to Genghis Khan has yet to be discovered."^[7]
  In a review paper published in Human Genetics, authors Chiara Batini and Mark Jobling cast doubts on Zerjal's 2003 theory that Genghis Khan is linked to haplogroup C^[8]
- C2c1a1a1-M407: Carried by Mongol descendants of the Northern Yuan ruler from 1474 to 1517, Dayan Khan, a male line descendant of Genghis Khan.^[9]
- C2b1a1b1-F1756: In 2019, a Chinese research team study suggested that Haplogroup C2b1a1b1-F1756^[10] might be a candidate of the true Y lineage of Genghis Khan.
  The Lu clan claimed to be the descendants of Khulgen, the sixth son of Genghis Khan. A genetic study of the molecular genealogy of Northwest China shows that some members of Lu belong to Y-DNA haplogroup C2b1a1b1 F1756.^[10] This haplogroup is also observed in the Tore clan from Kazakhstan, who are paternal descendants of Jochi, the first alleged son of Genghis Khan.^[11] However, the claim that the Lu clan is descendant of Khulgen is controversial and is disputed by several other studies.^[12]
Haplogroup R1b
- Research published in 2016 suggested that Genghis possibly belonged to the haplogroup Haplogroup R1b (R1b-M343).^[13] Five bodies, dating from about 1130–1250, were found in graves in Tavan Tolgoi, Mongolia. The authors suggested they were members of the Golden Family, and linked the spread of R1b-M343 to the former territories of the Mongol Empire. The authors also suggested that the Tavan Tolgoi bodies are related either to the female lineages of Genghis Khan's Borjigin clan, or to Genghis Khan's male lineage, rather than the Ongud clan.^[14]

References

^ Zerjal, T.; Xue, Y.; Bertorelle, G.; Wells, R. S.; Bao, W.; Zhu, S.; Qamar, R.; Ayub, Q.; Mohyuddin, A.; Fu, S.; Li, P.; Yuldasheva, N.; Ruzibakiev, R.; Xu, J.; Shu, Q.; Du, R.; Yang, H.; Hurles, M. E.; Robinson, E.; Gerelsaikhan, T.; Dashnyam, B.; Mehdi, S. Q.; Tyler-Smith, C. (2003). "The Genetic Legacy of the Mongols". American Journal of Human Genetics. 72 (3): 717–721. doi:10.1086/367774. PMC 1180246. PMID 12592608.
^ Derenko, M. V.; Malyarchuk, B. A.; Wozniak, M.; Denisova, G. A.; Dambueva, I. K.; Dorzhu, C. M.; Grzybowski, T.; Zakharov, I. A. (2007). "Distribution of the male lineages of Genghis Khan's descendants in northern Eurasian populations". Russian Journal of Genetics. 43 (3): 334–337. doi:10.1134/S1022795407030179. PMID 17486763. S2CID 24976689.
^ Royal, Charmaine D.; Novembre, John; Fullerton, Stephanie M.; Goldstein, David B.; Long, Jeffrey C.; Bamshad, Michael J.; Clark, Andrew G. (2010-05-14). "Inferring Genetic Ancestry: Opportunities, Challenges, and Implications". The American Journal of Human Genetics. 86 (5): 661–73. doi:10.1016/j.ajhg.2010.03.011. ISSN 0002-9297. PMC 2869013. PMID 20466090.
^ Batini, Chiara; Jobling, Mark (2017). "Detecting past male-mediated expansions using the Y chromosome". Human Genetics. 136 (5): 547–557. doi:10.1007/s00439-017-1781-z. hdl:2381/39780. PMID 28349239. S2CID 253980891.
^ Shao-Qing, Wen; Hong-Bing, Yao (5 June 2019). "Molecular genealogy of Tusi Lu's family reveals their paternal relationship with Jochi, Genghis Khan's eldest son". Journal of Human Genetics. 64 (8): 815–820. doi:10.1038/s10038-019-0618-0. PMID 31164702. S2CID 174810181.
^ Abilev, Serikbai; Malyarchuk, Boris; Derenko, Miroslava; Wozniak, Marcin; Grzybowski, Tomasz; Zakharov, Ilya (2012). "The Y-chromosome C3* star-cluster attributed to Genghis Khan's descendants is present at high frequency in the Kerey clan from Kazakhstan". Human Biology. 84 (1, Article 12): 79–89. doi:10.3378/027.084.0106. PMID 22452430. S2CID 46684406.
^ Wei, Lan-Hai; Yan, Shi; Lu, Yan; Wen, Shao-Qing; Huang, Yun-Zhi; Wang, Ling-Xiang; Li, Shi-Lin; Yang, Ya-Jun; Wang, Xiao-Feng; Zhang, Chao; Xu, Shu-Hua; Yao, Da-Li; Jin, Li; Li, Hui (2018). "Whole-sequence analysis indicates that the y chromosome C2*-Star Cluster traces back to ordinary Mongols, rather than Genghis Khan". European Journal of Human Genetics. 26 (2): 230–237. doi:10.1038/s41431-017-0012-3. PMC 5839053. PMID 29358612.
^ Batini, Chiara; Jobling, Mark (2017). "Detecting past male-mediated expansions using the Y chromosome". Human Genetics. 136 (5): 547–557. doi:10.1007/s00439-017-1781-z. hdl:2381/39780. PMID 28349239. S2CID 3713050.
^ Wei, Lan-Hai; Yan, Shi; Lu, Yan; Wen, Shao-Qing; Huang, Yun-Zhi; Wang, Ling-Xiang; Li, Shi-Lin; Yang, Ya-Jun; Wang, Xiao-Feng; Zhang, Chao; Xu, Shu-Hua; Yao, Da-Li; Jin, Li; Li, Hui (22 January 2018). "Whole-sequence analysis indicates that the Y chromosome C2*-Star Cluster traces back to ordinary Mongols, rather than Genghis Khan". European Journal of Human Genetics. 26 (2): 230–237. doi:10.1038/s41431-017-0012-3. PMC 5839053. PMID 29358612.
^ ^a ^b "C-F1756 YTree".
^ Wen, Shao-Qing; Hong-Bing, Yao; Du, Pan-Xin; Lan-Hai Wei (2019). "Molecular genealogy of Tusi Lu's family reveals their paternal relationship with Jochi, Genghis Khan's eldest son". Journal of Human Genetics. 26 (2): 230–237. doi:10.1038/s10038-019-0618-0. PMID 31164702. S2CID 174810181.
^ Liu, Yi (2020). "A commentary on molecular genealogy of Tusi Lu's family reveals their paternal relationship with Jochi, Genghis Khan's eldest son". Journal of Human Genetics. 66 (5): 549–550. doi:10.1038/s10038-020-00857-y. PMID 33127984. S2CID 226219315.
^ Lkhagvasuren, Gavaachimed; Shin, Heejin; Lee, Si Eun; Tumen, Dashtseveg; Kim, Jae-Hyun; Kim, Kyung-Yong; Kim, Kijeong; Park, Ae Ja; Lee, Ho Woon; Kim, Mi Jin; Choi, Jaesung; Choi, Jee-Hye; Min, Na Young; Lee, Kwang-Ho (2016). "Molecular Genealogy of a Mongol Queen's Family and Her Possible Kinship with Genghis Khan". PLOS ONE. 11 (9): e0161622. Bibcode:2016PLoSO..1161622L. doi:10.1371/journal.pone.0161622. PMC 5023095. PMID 27627454.
^ Lkhagvasuren et al. 2016"...it seems most likely that the Tavan Tolgoi bodies are members of Genghis Khan’s Golden family, including the lineage of bekis, Genghis Khan’s female lineage, and their female successors who controlled Eastern Mongolia in the early Mongolian era instead of guregens of the Ongud clan, or the lineage of khans, Genghis Khan’s male lineage, who married females of the Hongirad clan, including Genghis Khan’s grandmother, mother, chief wife, and some daughters-in-law.

Sources

Secret History of Mongols: A Mongolian Epic Chronicle of the Thirteenth Century [Yuan chao bi shi]. Brill's Inner Asian Library vol. 7. Translated by Igor de Rachewiltz. Leiden, South Holland; Boston, MA: Brill. 2004. ISBN 90-04-13159-0.
Abulgazi, Shejere-i Tarakime (Genealogical Tree of the Turks, 1659 // Simurg, 1996, ISBN 975-7172-09-X, ISBN 978-975-7172-09-3; Abulgazi, "Shejerei Terakime", Ashgabat, 1992; Abulgaziy, "Shajarai Türk", Tashkent, 1992)
B. Sumiyabaatar, "The Genealogy of the Mongols", 720 P, 2003, ISBN 99929-5-552-X]; The genealogy of the families mentioned in this book generally goes back to 18 generations. The genealogy of Chingis Khan which began 1.500 years or 40-50 generations ago and comprises hundreds of thousands of people prevented Mongolian blood from being mixed with that of other nations. Due to the encouragement of intra-tribal marriages family lines were kept stringent. From 1920 onward people were not allowed to keep genealogical records, and the descendants of the nobles and scholars were tortured and killed. This prohibition lasted for about 70 years or three generations. Although the keeping of genealogical records was rare during that period, Mongolians used to pass information about their ancestors to their children orally.