Haplogroup R (Y-DNA)

For the mitochondrial DNA haplogroup, see Haplogroup R (mtDNA).

Haplogroup R
Possible time of originabout 27,000 years BP[1][2]
Possible place of originIndian subcontinent,[3] or North Asia[4]
AncestorP-M45 (P1c, formerly P1), one of the three primary clades of P* (P-F5850)
DescendantsR1 (R-M173), R2 (R-M479) (R2)
Defining mutationsM207/Page37/UTY2, CTS207/M600/PF5992, CTS2426/M661/PF6033, CTS2913/M667, CTS3229/M672/PF6036/YSC0001265, CTS3622/PF6037, CTS5815/M696, CTS6417/Y480, CTS7876/PF6052, CTS7880/M725/PF6053, CTS8311/M732, CTS9005/M741, CTS10663/M788, CTS11075/M795/P6078, CTS11647/Y369, F33/M603/PF6013, F63/M614/PF6016, F82/M620, F154/M636, F295/M685, F356/M703/PF5919, F370/M708/Y479, F459/Y482, F652/M805, F765, FGC1168, L248.3/M705.3, L747/M702/PF5918/YSC0000287, L760/M642/PF5877/YSC0000286, L1225/M789/YSC0000232, L1347/M792/PF6077/YSC0000233, M613, M628/PF5868, M651/Y296, M718, M734/PF6057/S4/YSC0000201, M760/Y506, M764/PF5953, M799, P224/PF6050, P227, P229/PF6019, P232, P280, P285, PF5938, PF6014/S9[1]

Haplogroup R, or R-M207, is a Y-chromosome DNA haplogroup. It is both numerous and widespread among modern populations.

Some descendant subclades have been found since pre-history in Europe, Central Asia and South Asia. Others have long been present, at lower levels, in parts of West Asia and Africa. Some authorities have also suggested, more controversially, that R-M207 has long been present among Native Americans in North America – a theory that has not yet been widely accepted.[5]

According to geneticist Spencer Wells, haplogroup K originated in the Middle East or Central Asia.[6] However, Karafet et al. (2014) proposed that "rapid diversification ... of K-M526", also known as K2, likely occurred in Southeast Asia (near Indonesia) and later expanded to mainland Asia, although they could not rule out that it might have arisen in Eurasia and later went extinct there, and that either of these scenarios are "equally parsimonious".[7] According to Bergstorm et al, haplogroup K2b1 (Y-haplogroup S/M) found in Indigenous Australians and ancestors of haplogroup R and Q (Y-haplogroup K2b2/root P) split in Southeast Asia near Sahul.[8]

  1. ^ a b ISOGG, Y-DNA Haplogroup R and its Subclades – 2016 (12 December 2016).
  2. ^ Raghavan, M. et al. 2014. Upper Palaeolithic Siberian genome reveals dual ancestry of Native Americans, Nature, 505, 87–91.
  3. ^ Driem, George L. van (25 May 2021). Ethnolinguistic Prehistory: The Peopling of the World from the Perspective of Language, Genes and Material Culture. BRILL. p. 204. ISBN 978-90-04-44837-7.
  4. ^ Mahal, David G.; Matsoukas, Ianis G. (2018). "The Geographic Origins of Ethnic Groups in the Indian Subcontinent: Exploring Ancient Footprints with Y-DNA Haplogroups". Frontiers in Genetics. 9: 4. doi:10.3389/fgene.2018.00004. ISSN 1664-8021. PMC 5787057. PMID 29410676. This is one of the largest haplogroups in India and Pakistan. This is also the largest haplogroup in the dataset used in this study. It originated in north Asia about 27,000 years ago (ISOGG, 2016). It is one of the most common haplogroups in Europe, with its branches reaching 80 percent of the population in some regions (Eupedia, 2017). From somewhere in central Asia, some descendants of the man carrying the M207 mutation on the Y chromosome headed south to arrive in India about 10,000 years ago (Wells, 2007).
  5. ^ Zhao, Zhongming; Khan, Faisal; Borkar, Minal; Herrera, Rene; Agrawal, Suraksha (2009). "Presence of three different paternal lineages among North Indians: A study of 560 Y chromosomes". Annals of Human Biology. 36 (1): 46–59. doi:10.1080/03014460802558522. ISSN 0301-4460. PMC 2755252. PMID 19058044. Figure 3
  6. ^ Wells, Spencer (20 November 2007). Deep Ancestry: The Landmark DNA Quest to Decipher Our Distant Past. National Geographic Books. p. 79. ISBN 978-1-4262-0211-7. "Given the widespread distribution of K, it probably arose somewhere in the Middle East or Central Asia, perhaps in the region of Iran or Pakistan."
  7. ^ Karafet TM, Mendez FL, Sudoyo H, Lansing JS, Hammer MF (March 2015). "Improved phylogenetic resolution and rapid diversification of Y-chromosome haplogroup K-M526 in Southeast Asia". European Journal of Human Genetics. 23 (3): 369–73. doi:10.1038/ejhg.2014.106. PMC 4326703. PMID 24896152. "This pattern leads us to hypothesize a southeastern Asian origin for P-P295 and a later expansion of the ancestor of subhaplogroups R and Q into mainland Asia. An alternative explanation would involve an extinction event of ancestral P-P295* chromosomes everywhere in Asia. These scenarios are equally parsimonious. They involve either a migration event (P* chromosomes from Indonesia to mainland Asia) or an extinction event of P-P295* paragroup in Eurasia."
  8. ^ Bergström, Anders; Nagle, Nano; Chen, Yuan; McCarthy, Shane; Pollard, Martin O.; Ayub, Qasim; Wilcox, Stephen; Wilcox, Leah; van Oorschot, Roland A.H.; McAllister, Peter; Williams, Lesley; Xue, Yali; Mitchell, R. John; Tyler-Smith, Chris (March 2016). "Deep Roots for Aboriginal Australian Y Chromosomes". Current Biology. 26 (6): 809–813. Bibcode:2016CBio...26..809B. doi:10.1016/j.cub.2016.01.028. PMC 4819516. PMID 26923783."Applying a point mutation rate of 0.76 × 10−9 per site per year inferred from the number of missing mutations on the Y chromosome of a ~45-ky-old radiocarbon-dated Eurasian sample [18], we infer a divergence time of 54.3 ky (95% confidence interval [CI]: 48.0–61.6 ky) between K∗/M chromosomes in Sahul and their closest relatives in the R and Q haplogroups (Figure 1B)" - (Figure 1B):"The phylogeny of Y chromosomes in haplogroups K∗ and M. This detailed view of a part of the larger tree displayed in (A) focuses on chromosomes in haplogroups K∗ and M. Haplogroups Q and R, which are the closest relatives to K∗ and M in the phylogeny, are represented schematically because they contain very large numbers of samples. Aboriginal Australian and Papuan samples are colored in two different shades of red for easier visual separation."