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This project is a meeting place for users who share the A3b2 Y-DNA haplogroup, which means they are related along their paternal lines. Users in this group may want to share their family trees with each other to find overlaps and merge duplicate profiles in order to join or expand the World Family Tree and discover new relatives.
This project is about a Y-haplogroup, which defines a group of men by a shared set of inherited features in the DNA of their Y-chromosome. This implies they have a patrilineal ancestor in common, because only males carry a Y-chromosome, which they inherit from their father. The major Y-haplogroups were formed thousands of years ago, and therefore each group can today include thousands to millions of men. For an introduction, you can visit the Y-DNA Haplogroups project, the DNA Testing project, or start at the beginning with the DNA Primer project.
Naming History of Y-Haplogroup A3b2
This haplogroup project's name uses the older, now secondary, hierarchical format for Y-chromosome haplogroup names. Because the haplogroup names under this earlier system would change with the identification of new branches, it's no longer possible to know unambiguously to which current haplogroup this designation refers. Anyone with an old test result that assigned them to a Y-haplogroup with this name should update their information to use a shorthand format name that references a defining SNP.
However, the A3b2 designation has been used to refer to the A-M13 haplogroup in the YCC 2005 standard and later YCC standards, and also the ISOGG 2006 standard and later ISOGG standards through to 2011 (reference). Therefore it is likely that all profiles assigned the "A3b2" haplogroup in fact belong to haplogroup A-M13.
In 2012 and later ISOGG Y-DNA tree versions, the A-M13 haplogroup has been given different hierarchical names and never A3b2. As of ISOGG 12.1 (1-Jan-2017) the hierarchical name for A-M13 is "A1b1b2b" and it's full name would be "A1b1b2b-M13/PF1374." Therefore, the use of "A3b2" as a name for this haplogroup is no longer correct or appropriate. The haplogroup designation A-M13 or A1b-M13 is recommended, and "A1b1b2b-M13 (ISOGG 12.1)" is also correct.
Profiles with an A3b2 Y-haplogroup assignment should have their original test data reevaluated, and be reassigned a new haplogroup using a name that includes a SNP.
- Y-Haplogroup A @ Wikipedia
- Y-Haplogroup A @ ISOGG
- A (Y-DNA) @ Geni
- Y-DNA haplogroups @ Geni