Age: 12,051.5 ± 3,524.3; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Variants: C280g A9448G
FTDNA Tree: Link
Parent Branch: K1a4
Descendant branch(s): K1a4b1

YFull Info

Name: K1a4b

Age: 12500 to 9800 ybp [95% CI]

Expansion: 12400 to 6600 ybp [95% CI]

Variants: C280G A9448G

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


Haplogroup K1a4b is a branch on the maternal tree of human kind. Its age is between 8,500 and 15,600 years (Behar et al., 2012b).

mtDNA Haplogroup K1a4b 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 K1a4b 280G 5747 6023 6975 7388 8410 9448 13105 13395 Released 27 Aug 2008
02 K1a4b 280G 5747 6023 6975 7388 8410 9448 13105 13395 Released 14 Oct 2008
05 K1a4b 280G 9448 Released 8 Jul 2009
06 K1a4b 280G 9448 Released 28 Sep 2009
07 K1a4b 280G 9448 Released 10 Nov 2009
08 K1a4b 280G 9448 Released 21 Mar 2010
09 K1a4b 280G 9448 Released 20 Jun 2010
10 K1a4b 280G 9448 Released 10 Aug 2010
11 K1a4b 280G 9448 Released 7 Feb 2011
12 K1a4b 280G 9448 Released 20 Jul 2011
13 K1a4b 280G 9448 Released 28 Dec 2011; Last Build to use the rCRS
14 K1a4b C280g A9448G Released 5 Apr 2012; First version to use the RSRS
15 K1a4b C280g A9448G Released 30 Sep 2012
16 K1a4b C280g A9448G Released 19 Feb 2014
17 K1a4b C280g A9448G Released 18 Feb 2016

mtDNA Haplogroup K1a4b 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
Hap5007327 - Greenspan et al., 2006 - 2016 K1a4b - K1a4b:16093 K1a4b:315.1C, 8029, 13281, 13590, 14470
Hap5019285 Costa et al., 2013 K1a4b K1a4b2 K1a4b:13105, 16093 K1a4b:309.1C, 315.1C, 6173, 9058, 13993, 16080, 16290

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
Hap10062826 United States United States Italy Italy
Hap10062827 Unspecified Unspecified Unspecified Unspecified
Hap10062828 Unspecified Unspecified Unspecified Unspecified
Hap10062829 Unspecified Unspecified Unspecified Unspecified
Hap10062830 Unspecified Unspecified Unspecified Unspecified
Hap10062831 Unspecified Unspecified Unspecified Unspecified
Hap10062832 Unspecified Unspecified Unspecified Unspecified
Hap10062833 Unspecified Unspecified Unspecified Unspecified

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.


Peoples: | Places:

Last Updated: Last updated: November 30, -0001 at 0:00 am

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

you're currently offline