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. The haplogroup is 28 to 39 kilo years old.

The following table lists relevant GenBank samples: Phylotree HaplogroupYFull HaplogroupGenBank IDAlternate IDState/RegionOO-a1KY595606AUS41QueenslandOO-a1aAY289059Aus23Northern TerritoryOO-a1aKY595554AUS39QueenslandOO-a1aKY595619AUS40QueenslandO1O-a2KY595668AUS38QueenslandO1O1DQ404447AUD38Northern Territory desertO1aO1aAY289056Aus20Northern TerritoryO1aO1aAY289058Aus22Northern Territory

Subclades

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

See also

Genealogical DNA test Genetic genealogy Human mitochondrial genetics Population genetics Human mitochondrial DNA haplogroups

Notes