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Age: 1,146.1 ± 1,555.8; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Mutations: C1473T T3423a
Parent Branch: B4a1a1
Descendant branch(s):


Haplogroup B4a1a1b is a branch on the maternal tree of human kind. The woman who founded this line lived between 100 and 8,200 years ago (Behar et al 2012b).

mtDNA Haplogroup B4a1a1b 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.

07B4a1a1a21473 3423AReleased 10 Nov 2009
08B4a1a1a21473 3423AReleased 21 Mar 2010
09B4a1a1a21473 3423AReleased 20 Jun 2010
10B4a1a1a21473 3423AReleased 10 Aug 2010
11B4a1a1a21473 3423AReleased 7 Feb 2011
12B4a1a1a21473 3423AReleased 20 Jul 2011
13B4a1a1a21473 3423AReleased 28 Dec 2011; Last Build to use the rCRS
14B4a1a1a2C1473T T3423aReleased 5 Apr 2012; First version to use the RSRS
15B4a1a1a2C1473T T3423aReleased 30 Sep 2012
16B4a1a1bC1473T T3423aReleased 19 Feb 2014
17B4a1a1bC1473T T3423aReleased 18 Feb 2016

mtDNA Haplogroup B4a1a1b 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
Hap5013770Razafindrazaka et al., 2010noneB4a1a1b:309.1CC, 315.1C, 16182C, 16183C, 16357
Hap5013771Razafindrazaka et al., 2010noneB4a1a1b:309.1CC, 315.1C, 16182C, 16183C, 16368
Hap5013772Razafindrazaka et al., 2010noneB4a1a1b:309.1C, 315.1CN, 16182C, 16183C

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
Hap10044260United StatesUnited StatesUnited StatesUnited States
Hap10044261United StatesUnited StatesUnited StatesUnited States
Hap10044262United StatesUnited StatesUnspecifiedUnited 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

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