Age: 2,666.9 ± 3,436.2; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Variants: T8496C
FTDNA Tree: Link
Parent Branch: U4a2a
Descendant branch(s):

YFull Info

Name: U4a2a1

Age: 14000 to 10100 ybp [95% CI]

Expansion: 12300 to 2400 ybp [95% CI]

Variants: T8496C

Note: This information does not imply an endorcement of YFull or their methods. It is provided at the request of readers.


Haplogroup U4a2a1 is a branch on the maternal tree of human kind. The woman who started this branch lived at some point between recent generations and 6,100 years ago (Behar et al., 2012b).

mtDNA Haplogroup U4a2a1 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.

Build# Called Variants (Mutations) Notes
05 U4a2a1 8496 Released 8 Jul 2009
06 U4a2a1 8496 Released 28 Sep 2009
07 U4a2a1 8496 Released 10 Nov 2009
08 U4a2a1 8496 Released 21 Mar 2010
09 U4a2a1 8496 Released 20 Jun 2010
10 U4a2a1 8496 Released 10 Aug 2010
11 U4a2a1 8496 Released 7 Feb 2011
12 U4a2a1 8496 Released 20 Jul 2011
13 U4a2a1 8496 Released 28 Dec 2011; Last Build to use the rCRS
14 U4a2a1 T8496C Released 5 Apr 2012; First version to use the RSRS
15 U4a2a1 T8496C Released 30 Sep 2012
16 U4a2a1 T8496C Released 19 Feb 2014
17 U4a2a1 T8496C Released 18 Feb 2016

mtDNA Haplogroup U4a2a1 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 ID Origin Publication Hg BLD16 Hg BLD17 Hg YFull Missing Variants Additional Variants
Hap5001452 Behar et al., 2012b U4a2a1 U4a2a1 none U4a2a1:524.1AC, 16255
Hap5015891 U4a2a1 U4a2a1 none U4a2a1:524.1AC
Hap5015892 U4a2a1 U4a2a1 U4a2a1:146 U4a2a1:524.1AC, 6800
Hap5015905 U4a2a1 U4a2a1 U4a2a1:16189 none

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 ID Birth
Birth Country
Maternal Grandmother's
Birth Country

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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