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Haplogroup O (mtDNA)

Human mitochondrial DNA haplogroup

Haplogroup O mtDNA is a haplogroup derived from haplogroup N and found in Oceania. Specifically, it is found among Aboriginal Australians. Its defining mutations are G6755A, C9140T, and G16213A.

It is one of the rarest haplogroups. As of 2022, FamilyTreeDNA reports that only 4 people in their customer base who have tested their complete mitochondrial sequences are members of the haplogroup. YFull reports 9 known members, 8 of whom are stated to be from Australia, and that the haplogroup is at least 20,000 years old.

The following table lists relevant GenBank samples:

Phylotree Haplogroup		scope="col"	YFull Haplogroup		scope="col"	GenBank ID		scope="col"	Alternate ID		scope="col"	State/Region
O
O
O
O
O1
O1
O1a
O1a

Subclades

Tree

O
- O-a1
  - O-a1a
- O1
  - O-a2
- O1
  - O1a

Notes

References

(2004). "Phylogeny of Mitochondrial DNA Macrohaplogroup N in India, Based on Complete Sequencing: Implications for the Peopling of South Asia". The American Journal of Human Genetics.
(October 2006). "Mitochondrial genomics identifies major haplogroups in Aboriginal Australians". American Journal of Biological Anthropology.
(2011-10-07). "An Aboriginal Australian Genome Reveals Separate Human Dispersals into Asia". Science.
"PhyloTree.org - mtDNA tree Build 17 (18 Feb 2016): subtree N".
"Haplotree".
"O MTree".
(2017-03-13). "Aboriginal Australian mitochondrial genome variation – an increased understanding of population antiquity and diversity". Scientific Reports.

Info: Wikipedia Source

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