Age: 3,770.7 ± 2,142.5; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Mutations: A11065G G16145A
FTDNA Tree: Link
Parent Branch: I2
Descendant branch(s): I2a1 I2a2 I2a3


Haplogroup I2a is a branch on the maternal tree of human kind. Its age is between 1,600 and 5,900 years (Behar et al., 2012b).

mtDNA Haplogroup I2a Phylotree History

Phylotree.org is the maternal (mtDNA) tree of humanity. It is maintained by Dr. Mannis Van Oven. Each build is a major update to the tree. The current build is #17.

04I2a11065Released 10 May 2009
05I2a11065Released 8 Jul 2009
06I2a11065Released 28 Sep 2009
07I2a11065Released 10 Nov 2009
08I2a11065Released 21 Mar 2010
09I2a3398 11065 16145Released 20 Jun 2010
10I2a3398 11065 16145Released 10 Aug 2010
11I2a11065 16145Released 7 Feb 2011
12I2a11065 16145Released 20 Jul 2011
13I2a11065 16145Released 28 Dec 2011; Last Build to use the rCRS
14I2aA11065G G16145AReleased 5 Apr 2012; First version to use the RSRS
15I2aA11065G G16145AReleased 30 Sep 2012
16I2aA11065G G16145AReleased 19 Feb 2014
17I2aA11065G G16145AReleased 18 Feb 2016

mtDNA Haplogroup I2a Data Sources

GenBank Samples

GenBank is a database of genetic sequence data. It is run by the United States National Institute of Health. It serves as the main repository for mtDNA full sequence profiles. Samples come both from published academic literature and donations from genetic genealogy community members. In addition to GenBank samples, listings below may include other samples published but not submitted to GenBank such as those from the HapMap project.

Note: GenBank results currently use Phylotree build 16. I am working on changing resuts over to build 17.

Hg IDPublicationMissing VariantsAdditional Variants
Hap5004533Behar et al., 2012bnoneI2a:309.1C, 315.1C, 491, 2835A, 3951, 16074
Hap5007846Greenspan et al., 2006 - 2016noneI2a:309.1C, 315.1C, 4216
Hap5007969Greenspan et al., 2006 - 2016noneI2a:309.1C, 315.1C
Hap5007985Greenspan et al., 2006 - 2016I2a:207I2a:309.1CC, 315.1C
Hap5013743Raule et al., 2014I2a:573.1XCI2a:309.1C, 315.1C, 2835A, 10667, 16074

Geno 2.0 Data

Data from Geno 2.0 is derived from the The National Geographic Society’s Genographic Project — the DAR. The Hg ID is specific to this site and is used to protect the identities of those who take part in Genographic research. Birth Country, Mother's Birth Country, and Maternal Grandmother's Birth Country have been normalized from DAR database fields. The Maternal Origin is determined based on the three previous fields.

Note: Geno 2.0 results currently use Phylotree build 16. I am working on changing resuts over to build 17.

Hg IDBirth
Birth Country
Maternal Grandmother's
Birth Country
Hap10048795United StatesUnited StatesCanadaCanada
Hap10048796AustraliaUnited StatesFranceFrance
Hap10048797United StatesGermanyGermanyGermany
Hap10048799United StatesUnited StatesIrelandIreland
Hap10048800United StatesUnited StatesPolandPoland
Hap10048802CanadaCanadaUnited KingdomUnited Kingdom
Hap10048803BelgiumUnited KingdomUnited KingdomUnited Kingdom
Hap10048804United StatesUnited KingdomUnited KingdomUnited Kingdom
Hap10048805United StatesUnited StatesUnited StatesUnited States
Hap10048806United StatesUnited StatesUnited StatesUnited States
Hap10048807United StatesUnited StatesUnited StatesUnited States
Hap10048808United StatesUnited StatesUnited StatesUnited States
Hap10048809United StatesUnited StatesUnited StatesUnited States
Hap10048810United StatesUnited StatesUnited StatesUnited States
Hap10048811United StatesUnited StatesUnited StatesUnited States
Hap10048812UnspecifiedUnited StatesUnited StatesUnited States
Hap10048815UnspecifiedNew ZealandUnspecifiedNew Zealand
Hap10048816United StatesUnited StatesUnspecifiedUnited States
Hap10048817United StatesUnited StatesUnspecifiedUnited States

If you use the information in this table, please credit both this site and The National Geographic Society’s Genographic Project.

Sources & Resources

Related Sources

Additional Resources

mtDNA Consultants

The following members of the community offer paid consulting for those seeking help with mtDNA results. Inclusion on this list is not a recommendation or endorsement of any service.


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Last Updated: Last updated: November 30, -0001 at 0:00 am

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