Age: 17,075.5 ± 3,095.6; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Variants: A12397G
FTDNA Tree: Link
Parent Branch: X2
Descendant branch(s): X2a X2j

YFull Info

Name: -
Age: -
Expansion: -
 Variants: -

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

Haplogroup X2a’j is a branch on the maternal tree of human kind. Its age is between 14,000 and 20,200 years (Behar et al., 2012b).

mtDNA Haplogroup X2a’j 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
10 X2a’j 12397 Released 10 Aug 2010
11 X2a’j 12397 Released 7 Feb 2011
12 X2a’j 12397 Released 20 Jul 2011
13 X2a’j 12397 Released 28 Dec 2011; Last Build to use the rCRS
14 X2a’j A12397G Released 5 Apr 2012; First version to use the RSRS
15 X2a’j A12397G Released 30 Sep 2012
16 X2a’j A12397G Released 19 Feb 2014
17 X2a’j A12397G Released 18 Feb 2016

mtDNA Haplogroup X2a’j 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 results over to build 17.

Hg ID Origin Publication Hg BLD16 Hg BLD17 Hg YFull Missing Variants Additional Variants

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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