Phylogenetic History
Prior to 2002, there were in academic literature at least seven naming systems for the Y-Chromosome Phylogenetic tree. This lead to considerable confusion. In 2002, the major research groups came together and formed the Y-Chromosome Consortium (YCC). They published a joint paper that created a single new tree that all agreed to use. Latter, a group of citizen scientists with an interest in population genetics and genetic genealogy formed a working group to create an amateur tree aiming at being above all timely. The table below brings together all of these works at the point of the landmark 2002 YCC Tree. This allows a researcher reviewing older published literature to quickly move between nomenclatures.
| YCC 2002/2008 (Shorthand) | (α) | (β) | (γ) | (δ) | (ε) | (ζ) | (η) | YCC 2002 (Longhand) | YCC 2005 (Longhand) | YCC 2008 (Longhand) | YCC 2010r (Longhand) | ISOGG 2006 | ISOGG 2007 | ISOGG 2008 | ISOGG 2009 | ISOGG 2010 | ISOGG 2011 | ISOGG 2012 | ISOGG 2013 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T-M184 | 26 | VIII | 1U | 25 | Eu16 | H5 | F | K* | K | T | T | K2 | K2 | T | T | T | T | T | T | |
| K-M70/T-M70 | 26 | VIII | 1U | 25 | Eu15 | H5 | F | K2 | K2 | T | T1 | K2 | K2 | T | T | T | T1 | T1a | T1a | |
| T-P77 | 26 | VIII | 1U | 25 | Eu15 | H5 | F | K2 | K2 | T2 | T1a2 | K2 | K2 | T2 | T2 | T2a1 | T1a1b | T1a1a1 | T1a1a1 |
Read more about this topic: Haplogroup T (Y-DNA)
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