Age: 9,366.2 ± 5,673.6; CI=95% (Behar et al., 2012b)
Origin: Undetermined
Mutations: A2074d
Parent Branch: M37
Descendant branch(s): M37a1


Haplogroup M37a is a branch on the maternal tree of human kind. Its age is between 3,700 and 15,000 years (Behar et al., 2012b).

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 Mutations Notes
07 M37a 2074d Released 10 Nov 2009
08 M37a 2074d Released 21 Mar 2010
09 M37a 2074d Released 20 Jun 2010
10 M37a 2074d Released 10 Aug 2010
11 M37a 2074d Released 7 Feb 2011
12 M37a 2074d Released 20 Jul 2011
13 M37a 2074d Released 28 Dec 2011; Last Build to use the rCRS
14 M37a A2074d Released 5 Apr 2012; First version to use the RSRS
15 M37a A2074d Released 30 Sep 2012
16 M37a A2074d Released 19 Feb 2014
17 M37a A2074d Released 18 Feb 2016

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 Publication Missing Variants Additional Variants
Hap5006314 Chandrasekar et al., 2009 M37a:16311 M37a:315.1C, 4062, 10149T, 15115A
Hap5006316 Chandrasekar et al., 2009 M37a:16311 M37a:315.1C, 15115A, 16189Y
Hap5006326 Chandrasekar et al., 2009 M37a:10556, 16311 M37a:315.1C, 4062, 15115A
Hap5014449 Sun et al., 2006 none M37a:215, 309.1C, 315.1C, 980, 1400.1T, 4395, 7853, 16320

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.

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.

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


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