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Age: 2,488.4 ± 2,658.4; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Mutations: T11299C
FTDNA Tree: Link
Parent Branch: Y2a
Descendant branch(s): Y2a1a


Haplogroup Y2a1 is a branch on the maternal tree of human kind. The woman who started this branch lived at some point between recent generations and 5,100 years ago (Behar et al., 2012b).

mtDNA Haplogroup Y2a1 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.

11Y2a111299Released 7 Feb 2011
12Y2a111299Released 20 Jul 2011
13Y2a111299Released 28 Dec 2011; Last Build to use the rCRS
14Y2a1T11299CReleased 5 Apr 2012; First version to use the RSRS
15Y2a1T11299CReleased 30 Sep 2012
16Y2a1T11299CReleased 19 Feb 2014
17Y2a1T11299CReleased 18 Feb 2016

mtDNA Haplogroup Y2a1 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
Hap5006868Delfin et al., 2014noneY2a1:310, 315.1C, 16519
Hap5006869Delfin et al., 2014noneY2a1:309.1C, 315.1C, 16519
Hap5006871Delfin et al., 2014noneY2a1:310, 16519
Hap5006877Delfin et al., 2014noneY2a1:309.1CC, 315.1C, 12857N, 16519
Hap5006881Delfin et al., 2014noneY2a1:309.1C, 315.1C, 12857N, 16519
Hap5006892Delfin et al., 2014noneY2a1:309.1C, 315.1C, 16519
Hap5006949Delfin et al., 2014noneY2a1:309.1C, 315.1C, 16519
Hap5006956Delfin et al., 2014noneY2a1:309N, 310, 311N, 16519
Hap5014499Tabbada et al., 2010noneY2a1:309.1C, 315.1C, 16519
Hap5014505Tabbada et al., 2010noneY2a1:315.1C, 2232.1A, 8870, 16519
Hap5014518Tabbada et al., 2010Y2a1:146Y2a1:298, 315.1C, 709, 16519
Hap5017103Gunnarsdóttir et al., 2011aY2a1:146Y2a1:158A, 310d, 930, 2487N, 8855N, 8856N, 12857N, 14813, 16519
Hap5017138Gunnarsdóttir et al., 2011aY2a1:146Y2a1:146N, 310d, 4767
Hap5017157Gunnarsdóttir et al., 2011anoneY2a1:255N, 257N, 310d, 714N, 899N, 4767, 4774N, 8927N, 8928N, 8929N, 8930N, 8932N, 8939N
Hap5017168Gunnarsdóttir et al., 2011anoneY2a1:310d, 4767
Hap5017193Gunnarsdóttir et al., 2011anoneY2a1:2457N, 12418N, 16519
Hap5017527Gunnarsdóttir et al., 2011bnoneY2a1:228, 294N, 315.1C, 7474N, 16519
Hap5017551Gunnarsdóttir et al., 2011bnoneY2a1:143, 228, 309.1C, 315.1C, 4716N, 4853, 16075, 16519
Hap5017554Gunnarsdóttir et al., 2011bnoneY2a1:228, 315.1C, 16519

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
Hap10101420United StatesUnited StatesIrelandIreland
Hap10101429United StatesPhilippinesPhilippinesPhilippines
Hap10101430United StatesPhilippinesPhilippinesPhilippines
Hap10101431United StatesPhilippinesPhilippinesPhilippines

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|

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