Y-DNA Haplogroup Tree 2007
Version: 2.08   Date: 31 October 2007    Version History
ISOGG (International Society of Genetic Genealogy) is not affiliated with any registered, trademarked, and/or copyrighted names of companies, websites and organizations.
The Y-DNA Haplogroup Tree 2007 is for informational purposes only, and does not represent an endorsement by ISOGG.

Main Tree: Y-DNA Haplogroup Tree 2007
Haplogroups: A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R
SNPs: Index to Y-DNA SNPs
References: Composite List of Papers Cited        Glossary of Genetic Terms
    Listing Criteria for SNP Inclusion into the ISOGG Y-DNA Haplogroup Tree

Link to Y-DNA Haplogroup Tree 2006

      The first phylogenetic chart to unify nomenclature was published in 2002 by the Y Chromosome Consortium (YCC). The 2003 Y-DNA phylogenetic chart appeared in Mark A. Jobling and Chris Tyler-Smith, The Human Y Chromosome: An Evolutionary Marker Comes of Age Nature Reviews|Genetics, Figure 5. Family Tree DNA created the 2005 Y-Chromosome Phylogenetic Tree. Richard R. Kenyon formatted a Y-DNA phylogenetic tree to an indented list. An ISOGG group was formed in November 2005 to create a web-based document which could be updated to keep pace with the rapid developments in the field. Current members are: Coordinator: Alice Fairhurst. Design team: Bill Bailey, Katherine Hope Borges, Richard Kenyon, Sasson Margaliot, Doug McDonald. Content experts: Whit Athey, Phil Goff, Gareth Henson, Mike N. Humphrey, John McEwan, Ana Oquendo Pabon, Bonnie Schrack, Ann Turner, David Wilson. Content experts liaison with experts from various DNA labs to determine what information is needed to amend the tree.
      The Y Haplogroup classification of the male Y-chromosome is currently used to estimate the population group of the paternal line. The haplogroups are identified by the letters, A through R. Haplogroups are subdivided into one or more levels, called subclades, and thus forming a tree. The Y-chromosome haplogroup is determined by performing a sequence of SNP tests.
      Each line lists a haplogroup or subclade in boldface, then one or more SNPs follow on the same line. For a sample to belong to a particular subclade, it must test positive for any one of the SNPs appearing on the line, providing positive results were obtained for its haplogroup and any intervening subclades.
      SNPs development indicated by beginning letters:
M = Peter Underhill, Ph.D. of Stanford University
N = The Laboratory of Bioinformatics, Institute of Biophysics, Chinese Academy of Sciences, Beijing
P = Michael Hammer, Ph.D. of University of Arizona
PK = Biomedical and Genetic Engineering Laboratories, Islamabad, Pakistan
S = James F. Wilson, D.Phil. at Edinburgh University
U = Lynn M. Sims, University of Central Florida; Dennis Garvey, Ph.D. Gonzaga University; and Jack Ballantyne, Ph.D., University of Central Florida
V = Rosaria Scozzari and Fulvio Cruciani, Universit´┐Ż "La Sapienza", Rome, Italy

Corrections/Additions made since 20 December 2006:

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Back to Glossary
Back to Listing Criteria

Copyright 2007, International Society of Genetic Genealogy. All Rights Reserved.    

Please cite this document as follows: International Society of Genetic Genealogy (2007). Y-DNA Haplogroup Tree 2007, Version: [Number given at top of Main Page], Date: [Date given at top of Main Page], http://www.isogg.org/tree/ [Date of access: Day, Month, Year].

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