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Age: 42,947.5 ± 5,430.6; CI=95% (Behar et al., 2012b)
Origin: Asia
Variants: T16217C
FTDNA Tree: Link
Parent Branch: B4’5
Descendant branch(s): B4a B4b’d’e’j B4c B4f B4g B4h B4i B4k B4m

YFull Info

Name: B4
Age: 50000 to 37200 ybp [95% CI]
Expansion: 45200 to 36300 ybp [95% CI]
 Variants: T16217C

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

Haplogroup B4 is a branch on the maternal tree of human kind. The woman who founded this line lived between 37,500 and 48,400 years ago (Behar et al., 2012b).

National Geographic 2.0 Information

This information comes from the 2012 update of the National Geographic Genographic Project website.


mtDNA Haplogroup B4 – Geno 2.0 Author: Balanovsky, O. et al., 2011 Copyright: National Geographic
mtDNA Haplogroup B4 – Geno 2.0 Author: Balanovsky, O. et al., 2011 Copyright: National Geographic


Haplogroup: B4
Age: 44,200 ± 11,600 Years Ago
Origin: Asia
Blurb: This branch was born about 44,000 years ago in Asia. It spread across much of Asia and some of its descendants became early founders in the Americas.Author: Rebekah A. Canada | Copyright: National Geographic

mtDNA Haplogroup B4 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
01 B4 16217 Released 27 Aug 2008
02 B4 16217 Released 14 Oct 2008
03 B4 16217 Released 1 Mar 2009
05 B4 16217 Released 8 Jul 2009
06 B4 16217 Released 28 Sep 2009
07 B4 16217 Released 10 Nov 2009
08 B4 16217 Released 21 Mar 2010
09 B4 16217 Released 20 Jun 2010
10 B4 16217 Released 10 Aug 2010
11 B4 16217 Released 7 Feb 2011
12 B4 16217 Released 20 Jul 2011
13 B4 16217 Released 28 Dec 2011; Last Build to use the rCRS
14 B4 T16217C Released 5 Apr 2012; First version to use the RSRS
15 B4 T16217C Released 30 Sep 2012
16 B4 T16217C Released 19 Feb 2014
17 B4 T16217C Released 18 Feb 2016

mtDNA Haplogroup B4 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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Last Updated: Last updated: August 29, 2020 at 19:49 pm


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