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Haplogroup O-M268 | |
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Possible time of origin | 34,100 or 29,200 ybp [1] 33,181 [95% CI 36,879 <-> 24,461] ybp [2] 30,100 [95% CI 27,800 <-> 32,400] ybp [3] |
Coalescence age | 31,108 [95% CI 34,893 <-> 22,844] ybp [2] |
Possible place of origin | Southeast Asia or East Asia [3] |
Ancestor | O1 (O-F265) |
Descendants | O1b1 (K18), O1b2 (P49/https://en.wikipedia.org/wiki/Draft:Haplogroup_O-M176) |
Defining mutations | P31, M268, L690/F167, F256/M1341, Y9038/FGC19644, L463/F330, M1461, F138, Y9317, FGC55566, F292/M1363, CTS4164, CTS6713/M1396, CTS5785/M1377, F435/M1417, F516, M1455 |
Highest frequencies | Austroasiatic-speaking peoples, Tai peoples, Hlai, Balinese, Javanese, Japanese, Ryukyuans, Koreans, Malagasy |
In human genetics, Haplogroup O-M268, also known as O1b (formerly Haplogroup O2), is a Y-chromosome DNA haplogroup. Haplogroup O-M268 is a primary subclade of haplogroup O-F265, itself a primary descendant branch of Haplogroup O-M175.
In a paper published in 2011 by a group of Chinese researchers affiliated with Fudan University, it has been suggested that China is the origin of the expansion of haplogroup O-P31 (therein called Haplogroup O2-M268). [4]
Haplogroup O-P31 is notable for the peculiarities of its geographical distribution. Like all clades of Haplogroup O-M175, Haplogroup O-P31 is found only among the males of modern Eastern Eurasian populations. However, Haplogroup O-P31 is generally found with high frequency only among certain populations, such as the Austroasiatic peoples of India, Bangladesh and Southeast Asia, the Nicobarese of the Nicobar Islands in the Indian Ocean, Koreans, and Japanese. Importantly, haplogroup O-P31 most contributed to Austroasiatic speakers and to Tai-Kadai speakers, but also to non-Austroasiatic rice-farming populations, migrating to Japan (that is, belonging to other lineages, than the lineages, thriving during the Last Glacial Maximum period, such as yDNA O1b2-P49, C1a-M8, D-M64).
Besides its widespread and patchy distribution, Haplogroup O1b-P31 is also notable for the fact that it can be divided into two primary subclades that show almost completely disjunct distribution: O1b1-M1304/K18 and O1b2-M176/P49. One of these subclades, O1b1-M1304/K18 (also known as O-F2320), can be mainly divided into two subclades, O1b1a1-PK4 (formerly O2a) and O1b1a2-CTS4040 (formerly O2*(xM95,M176)). O1b1a1-PK4 is found mainly among populations of Southeast Asia and some tribal populations of India (such as the Remo, Juang, and Nicobarese), but it is also common among minority ethnic groups in southern China, and it is found with low frequency throughout China as well as in Japan. O1b1a2-CTS4040 is relatively rare and mainly distributed in East Asia, especially in China, where it accounts for approximately 3.22% of the national male population. [5] The other primary subclade of Haplogroup O1b-P31, i.e. Haplogroup O1b2-M176 (formerly O2b), is found in approximately one third of present-day Japanese and Korean males and with low frequency (approximately 0.70% [6] ) in Chinese males.
Prior to 2002, there were in academic literature at least seven naming systems for the Y-Chromosome Phylogenetic tree. This led to considerable confusion. In 2002, the major research groups came together and formed the Y-Chromosome Consortium (YCC). They published a joint paper that created a single new tree that all agreed to use. Later, a group of citizen scientists with an interest in population genetics and genetic genealogy formed a working group to create an amateur tree aiming at being above all timely. The table below brings together all of these works at the point of the landmark 2002 YCC Tree. This allows a researcher reviewing older published literature to quickly move between nomenclatures.
YCC 2002/2008 (Shorthand) | (α) | (β) | (γ) | (δ) | (ε) | (ζ) | (η) | YCC 2002 (Longhand) | YCC 2005 (Longhand) | YCC 2008 (Longhand) | YCC 2010r (Longhand) | ISOGG 2006 | ISOGG 2007 | ISOGG 2008 | ISOGG 2009 | ISOGG 2010 | ISOGG 2011 | ISOGG 2012 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
O-M175 | 26 | VII | 1U | 28 | Eu16 | H9 | I | O* | O | O | O | O | O | O | O | O | O | O |
O-M119 | 26 | VII | 1U | 32 | Eu16 | H9 | H | O1* | O1a | O1a | O1a | O1a | O1a | O1a | O1a | O1a | O1a | O1a |
O-M101 | 26 | VII | 1U | 32 | Eu16 | H9 | H | O1a | O1a1 | O1a1a | O1a1a | O1a1 | O1a1 | O1a1a | O1a1a | O1a1a | O1a1a | O1a1a |
O-M50 | 26 | VII | 1U | 32 | Eu16 | H10 | H | O1b | O1a2 | O1a2 | O1a2 | O1a2 | O1a2 | O1a2 | O1a2 | O1a2 | O1a2 | O1a2 |
O-P31 | 26 | VII | 1U | 33 | Eu16 | H5 | I | O2* | O2 | O2 | O2 | O2 | O2 | O2 | O2 | O2 | O2 | O2 |
O-M95 | 26 | VII | 1U | 34 | Eu16 | H11 | G | O2a* | O2a | O2a | O2a | O2a | O2a | O2a | O2a | O2a | O2a1 | O2a1 |
O-M88 | 26 | VII | 1U | 34 | Eu16 | H12 | G | O2a1 | O2a1 | O2a1 | O2a1 | O2a1 | O2a1 | O2a1 | O2a1 | O2a1 | O2a1a | O2a1a |
O-SRY465 | 20 | VII | 1U | 35 | Eu16 | H5 | I | O2b* | O2b | O2b | O2b | O2b | O2b | O2b | O2b | O2b | O2b | O2b |
O-47z | 5 | VII | 1U | 26 | Eu16 | H5 | I | O2b1 | O2b1a | O2b1 | O2b1 | O2b1a | O2b1a | O2b1 | O2b1 | O2b1 | O2b1 | O2b1 |
O-M122 | 26 | VII | 1U | 29 | Eu16 | H6 | L | O3* | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 |
O-M121 | 26 | VII | 1U | 29 | Eu16 | H6 | L | O3a | O3a | O3a1 | O3a1 | O3a1 | O3a1 | O3a1 | O3a1 | O3a1 | O3a1a | O3a1a |
O-M164 | 26 | VII | 1U | 29 | Eu16 | H6 | L | O3b | O3b | O3a2 | O3a2 | O3a2 | O3a2 | O3a2 | O3a2 | O3a2 | O3a1b | O3a1b |
O-M159 | 13 | VII | 1U | 31 | Eu16 | H6 | L | O3c | O3c | O3a3a | O3a3a | O3a3 | O3a3 | O3a3a | O3a3a | O3a3a | O3a3a | O3a3a |
O-M7 | 26 | VII | 1U | 29 | Eu16 | H7 | L | O3d* | O3c | O3a3b | O3a3b | O3a4 | O3a4 | O3a3b | O3a3b | O3a3b | O3a2b | O3a2b |
O-M113 | 26 | VII | 1U | 29 | Eu16 | H7 | L | O3d1 | O3c1 | O3a3b1 | O3a3b1 | - | O3a4a | O3a3b1 | O3a3b1 | O3a3b1 | O3a2b1 | O3a2b1 |
O-M134 | 26 | VII | 1U | 30 | Eu16 | H8 | L | O3e* | O3d | O3a3c | O3a3c | O3a5 | O3a5 | O3a3c | O3a3c | O3a3c | O3a2c1 | O3a2c1 |
O-M117 | 26 | VII | 1U | 30 | Eu16 | H8 | L | O3e1* | O3d1 | O3a3c1 | O3a3c1 | O3a5a | O3a5a | O3a3c1 | O3a3c1 | O3a3c1 | O3a2c1a | O3a2c1a |
O-M162 | 26 | VII | 1U | 30 | Eu16 | H8 | L | O3e1a | O3d1a | O3a3c1a | O3a3c1a | O3a5a1 | O3a5a1 | O3a3c1a | O3a3c1a | O3a3c1a | O3a2c1a1 | O3a2c1a1 |
The following research teams per their publications were represented in the creation of the YCC Tree.
This phylogenetic tree of haplogroup O subclades is based on the YCC 2008 tree ( Karafet 2008 ) and subsequent published research.
Haplogroup J-M304, also known as J, is a human Y-chromosome DNA haplogroup. It is believed to have evolved in Western Asia. The clade spread from there during the Neolithic, primarily into North Africa, the Horn of Africa, the Socotra Archipelago, the Caucasus, Europe, Anatolia, Central Asia, South Asia, and Southeast Asia.
Haplogroup C is a major Y-chromosome haplogroup, defined by UEPs M130/RPS4Y711, P184, P255, and P260, which are all SNP mutations. It is one of two primary branches of Haplogroup CF alongside Haplogroup F. Haplogroup C is found in ancient populations on every continent except Africa and is the predominant Y-DNA haplogroup among males belonging to many peoples indigenous to East Asia, Central Asia, Siberia, North America and Australia as well as a some populations in Europe, the Levant, and later Japan.
Haplogroup D1 or D-M174 is a subclade of haplogroup D-CTS3946. This male haplogroup is found primarily in East Asia, Magar-ethnic Nepal and the Andaman Islands. It is also found regularly with lower frequency in Central Asia and Mainland Southeast Asia, and, more rarely, in Europe and the Middle East.
Haplogroup N (M231) is a Y-chromosome DNA haplogroup defined by the presence of the single-nucleotide polymorphism (SNP) marker M231.
Haplogroup O, also known as O-M175, is a human Y-chromosome DNA haplogroup. It is primarily found among populations in Southeast Asia and East Asia. It also is found in various percentages of populations of the Russian Far East, South Asia, Central Asia, Caucasus, Crimea, Ukraine, Iran, Oceania, Madagascar and the Comoros. Haplogroup O is a primary descendant of haplogroup NO-M214.
Haplogroup O-M122 is an Eastern Eurasian Y-chromosome haplogroup. The lineage ranges across Southeast Asia and East Asia, where it dominates the paternal lineages with extremely high frequencies. It is also significantly present in Central Asia, especially among the Naiman tribe of Kazakhs.
Haplogroup Q or Q-M242 is a Y-chromosome DNA haplogroup. It has one primary subclade, Haplogroup Q1 (L232/S432), which includes numerous subclades that have been sampled and identified in males among modern populations.
In human genetics, a human Y-chromosome DNA haplogroup is a haplogroup defined by mutations in the non-recombining portions of DNA from the male-specific Y chromosome. Many people within a haplogroup share similar numbers of short tandem repeats (STRs) and types of mutations called single-nucleotide polymorphisms (SNPs).
In human genetics, Haplogroup O-M119 is a Y-chromosome DNA haplogroup. Haplogroup O-M119 is a descendant branch of haplogroup O-F265 also known as O1a, one of two extant primary subclades of Haplogroup O-M175. The same clade previously has been labeled as O-MSY2.2.
Haplogroup NO1, also known as NO-M214, is a human Y-chromosome DNA haplogroup. NO1 is the sole confirmed subclade of Haplogroup K- M2313, which is the sole subclade of Haplogroup K2a (K-M2308). NO is the dominant Y-DNA haplogroup in most parts of eastern and northern Eurasia, including East Asia, Siberia and northern Fennoscandia.
Haplogroup C-M217, also known as C2, is a Y-chromosome DNA haplogroup. It is the most frequently occurring branch of the wider Haplogroup C (M130). It is found mostly in Central Asia, Eastern Siberia and significant frequencies in parts of East Asia and Southeast Asia including some populations in the Caucasus, Middle East, South Asia, East Europe. It is found in a much more widespread areas with a low frequency of less than 2%.
Its phylogenetically closest relatives are found among the peoples of Japan, Central Asia, and the Andaman Islands in the Bay of Bengal. It is more distantly related to the Haplogroup D*, whose sub-clades are common throughout Asia.
Haplogroup S-M230, also known as S1a1b, is a Y-chromosome DNA haplogroup. It is by far the most numerically significant subclade of Haplogroup S1a.
Haplogroup E-P147 is a human Y-chromosome DNA haplogroup. Haplogroup E-P147, along with the less common haplogroup E-M75, is one of the two main branches of the older haplogroup E-M96. The E-P147 clade is commonly observed throughout Africa and is divided into two subclades: the less common, haplogroup E-M132, and the more common, haplogroup E-P177.
Haplogroup E-P177 is a human Y-chromosome DNA haplogroup. E-P177 has two known subclades, which are haplogroup E-P2 and haplogroup E-P75.
In human population genetics, Y-Chromosome haplogroups define the major lineages of direct paternal (male) lines back to a shared common ancestor in Africa. Men in the same haplogroup share a set of differences, or markers, on their Y-Chromosome, which distinguish them from men in other haplogroups. These UEPs, or markers used to define haplogroups, are SNP mutations. Y-Chromosome Haplogroups all form "family trees" or "phylogenies", with both branches or sub-clades diverging from a common haplogroup ancestor, and also with all haplogroups themselves linked into one family tree which traces back ultimately to the most recent shared male line ancestor of all men alive today, called in popular science Y Chromosome Adam.
The tables below provide statistics on the human Y-chromosome DNA haplogroups most commonly found among ethnolinguistic groups and populations from East and South-East Asia.
Haplogroup C1 also known as C-F3393, is a major Y-chromosome haplogroup. It is one of two primary branches of the broader Haplogroup C, the other being C2.
Haplogroup O2a2b1a1-M117 or Haplogroup O2a2b1a1-M117 is a subclade of O2a2b1-M134 that occurs frequently in China and in neighboring countries like Bhutan, Nepal, and Korea, also found among Sino-Tibetan language speaking people.
Haplogroup E-M329, also known as E1b1a2, is a human Y-chromosome DNA haplogroup. E-M329 is mostly found in East Africa.
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