Age: 3,965.9 ± 2,715.3; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Variants: C16268T
FTDNA Tree: Link
Parent Branch: B4a1b
Descendant branch(s): B4a1b1a

YFull Info

Name: B4a1b1

Age: 17800 to 2800 ybp [95% CI]

Expansion: 12400 to 1100 ybp [95% CI]

Variants: C16268T

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


Haplogroup B4a1b1 is a branch on the maternal tree of human kind. The woman who founded this line lived between 1,300 and 6,700 years ago (Behar et al 2012b).

mtDNA Haplogroup B4a1b1 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 B4a1b1 16268 Released 8 Jul 2009
06 B4a1b1 16268 Released 28 Sep 2009
07 B4a1b1 16268 Released 10 Nov 2009
08 B4a1b1 16268 Released 21 Mar 2010
09 B4a1b1 16268 Released 20 Jun 2010
10 B4a1b1 16268 Released 10 Aug 2010
11 B4a1b1 16268 Released 7 Feb 2011
12 B4a1b1 16268 Released 20 Jul 2011
13 B4a1b1 16268 Released 28 Dec 2011; Last Build to use the rCRS
14 B4a1b1 C16268T Released 5 Apr 2012; First version to use the RSRS
15 B4a1b1 C16268T Released 30 Sep 2012
16 B4a1b1 C16268T Released 19 Feb 2014
17 B4a1b1 C16268T Released 18 Feb 2016

mtDNA Haplogroup B4a1b1 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
Hap5015165 Japan Tanaka et al., 2004 B4a1b1 B4a1b1* none B4a1b1:309.1CC, 315.1C, 523-524d, 5004, 16182C, 16183C
Hap5022368 Zheng et al., 2011 B4a1b1 none B4a1b1:150, 310N, 523-524d, 5004, 16182N, 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 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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