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Age: 13,631.6 ± 2,457.3; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Mutations: G9055A A15924G
Parent Branch: A2
Descendant branch(s):


Haplogroup A2x is a branch on the maternal tree of human kind. The woman who founded this line lived between 11,200 and 16,100 years ago (Behar et al 2012b).

mtDNA Haplogroup A2x Phylotree History 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.

13A2x9055 15924Released 28 Dec 2011; Last Build to use the rCRS
14A2xG9055A A15924GReleased 5 Apr 2012; First version to use the RSRS
15A2xG9055A A15924GReleased 30 Sep 2012
16A2xG9055A A15924GReleased 19 Feb 2014
17A2xG9055A A15924GReleased 18 Feb 2016

mtDNA Haplogroup A2x 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
Hap5008243Greenspan et al., 2006 - 2016noneA2x:309.1C, 315.1C, 523-524d, 12196, 16272, 16287G
Hap5017634noneA2x:143, 222G, 309d, 315.1C, 499, 523-524d, 16262
Hap5017647noneA2x:143, 315.1C, 499, 523-524d, 16262

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
Hap10042891United StatesMexicoMexicoMexico
Hap10042892United StatesMexicoMexicoMexico
Hap10042893BelgiumUnited StatesMexicoMexico
Hap10042894United StatesMexicoUnspecifiedMexico

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

-001-11-30T00:00:00+00:00June 6th, 2016|