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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 |
Haplogroup O-M268 (former name) is a Y-DNA that descends from O1 (O-F265), however, it is now referred to as O1b.
The authors of a study published in 2011 have suggested China as being the early birthplace of O1b. [4]
Other studies suggest a complex origin that is inconclusive because of rising seawater to the east of China (which may have been walkable land mass).
Despite such studies, descendants of O1b suggest two primary migration paths from Southeast China:
This suggestion aims to draw an intersection to support the theory of both migration paths being in opposite spectrums geographically in East Asia.
There has also been recent suggestions that Korea plays a major role in the origin of O1b.
O1b is distributed with varying frequencies among these populations:
As of right now, it is inconclusive as to what frequency pertains to each population due to lack of accurate data.
Specific descendants (subclades) of O1b can be found at YFULL and ISOGG.
The two primary descendants are:
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.
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