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Age: Undetermined
Origin: Asia
Mutations: A14696G
Parent Branch: A
Descendant branch(s):


Haplogroup A20 is an Asia branch on the maternal tree of humanity. Its age has not yet been determined.

Published research comes from two studies. The first is medical and found it in a Japanese participant (Bilal et al., 2008). The second found a member in a Han Chinese population living in Denver, Colorado (Zheng et al., 2011).

From Geno 2 data, there is one person with maternal origins in Japan.

It is likely that the first woman to have the genetic markers for this line lived in what is now China. From there, some of her descendants spread to Japan.


mtDNA Haplogroup A20 Phylotree History 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.

16A20A14696GReleased 19 Feb 2014
17A20A14696GReleased 18 Feb 2016

mtDNA Haplogroup A20 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 IDPublicationMissing VariantsAdditional Variants
Hap5005468Bilal et al., 2008noneA20:315.1C, 523-524d, 3492, 8289.1CCCCCTCTA, 8886, 11212, 12903, 14178
Hap5022232Zheng et al., 2011noneA20:8860N, 8861N, 8862N, 16148, 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 IDBirth
Birth Country
Maternal Grandmother's
Birth Country
Hap10041529United StatesUnited States TerritoriesJapanJapan
Hap10041530United States TerritoriesUnited States TerritoriesUnspecifiedUnited States Territories

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: Chinese Han | Places: China and Japan

Last Updated: Last updated: August 13, 2016 at 15:23 pm

2016-08-13T15:23:58+00:00June 6th, 2016|