Age: 12,987.6 ± 5,404.2; CI=95% (Behar et al., 2012b)
Origin: Asia
Mutations: G1442A
Parent Branch: A
Descendant branch(s): A1a


Haplogroup A1 is a branch on the maternal tree of humanity. It was born between 7,600 and 18,400 years ago (Behar et al., 2012b).

Most members of the lineage belong to one of its daughter branches. However, there is one example in published research from Japan that does not (Bilal et al., 2008).

The one person in the Geno 2 dataset who belongs to this line but not a daughter branch has not included demographic information.

It is worth noting that prior to Phylotree build 16 this lineage was known as A4a.

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
01 A4a 1442 9713 16249 Released 27 Aug 2008
02 A4a 1442 9713 16249 Released 14 Oct 2008
03 A4a 1442 Released 1 Mar 2009
04 A4a 1442 Released 10 May 2009
05 A4a 1442 Released 8 Jul 2009
06 A4a 1442 Released 28 Sep 2009
07 A4a 1442 Released 10 Nov 2009
08 A4a 1442 Released 21 Mar 2010
09 A4a 1442 Released 20 Jun 2010
10 A4a 1442 Released 10 Aug 2010
11 A4a 1442 Released 7 Feb 2011
12 A4a 1442 Released 20 Jul 2011
13 A4a 1442 Released 28 Dec 2011; Last Build to use the rCRS
14 A4a G1442A Released 5 Apr 2012; First version to use the RSRS
15 A4a G1442A Released 30 Sep 2012
16 A1 G1442A Released 19 Feb 2014
17 A1 G1442A 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
Hap5005492 Bilal et al., 2008 none A1:315.1C, 471, 523-524d, 6266, 16519

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
Hap10040887 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.

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: August 14, 2016 at 17:43 pm


Peoples: | Places: Japan

2016-08-14T17:43:03+00:00 June 6th, 2016|