Age: Undetermined
Origin: Undetermined
Variants: G9438A G14323A
FTDNA Tree: Link
Parent Branch: T1a8
Descendant branch(s):

YFull Info

Name: T1a8b

Age: 16000 to 7000 ybp [95% CI]

Expansion: 13500 to 4300 ybp [95% CI]

Variants: G9438A G14323A

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


Haplogroup T1a8b is a branch on the maternal tree of humanity.

mtDNA Haplogroup T1a8b 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
15 T1a8b G9438A G14323A Released 30 Sep 2012
16 T1a8b G9438A G14323A Released 19 Feb 2014
17 T1a8b G9438A G14323A Released 18 Feb 2016

mtDNA Haplogroup T1a8b 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
Hap5019111 Azerbaijan Pala et al., 2012 T1a8b T1a8b* none T1a8b:315.1C, 523-524d, 8227, 9456
Hap5019112 Kuwait Pala et al., 2012 T1a8b T1a8b1 T1a8b:16163, 16311 T1a8b:309.1C, 315.1C, 4386, 11864, 14180

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
Hap10074980 United States United States Unspecified United 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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