T - The Y-DNA Haplogroup T (former K2) Project- Background



This project welcomes anyone who has been predicted or SNP-tested as Y-Haplogroup T.
Haplogroup T (known as Haplogroup K2 until May 2008) is defined by SNP M184 and is found at low frequencies in the Middle East, Europe and North Africa. Most lines in T belong to subgroup T1a defined by SNP M70 which until March 2011 was considered equivalent to M184.
T1a in turn splits into T1a1 (T-L162), T1a2 (T-L131) and T1a3 (T-L1255).
T1a1 clusters along an east-west axis from Iran to Spain. T1a2 is found both in northern Europe and southern Africa but is rarer in the eastern and western edges of T's distribution zone. To date, T1a3 has only been found in Kuwait.

Recent developments including the Geno 2.0 chip have identified the following major subgroups of T1a:

T-L208 (T1a1a* on the current ISOGG tree http://www.isogg.org/tree/ISOGG_HapgrpT.html)
T-Z709 (T1a1a1*)
T-P77 (T1a1a1a)
T-P322 (T1a2a)
T-L446 (T1a2b)
Most lineages in T will belong to one of these 5 branches. The first two are strictly speaking paragroups and may split into several branches when more data is available.

Thomas Jefferson is believed to have belonged to haplogroup T, based on tests carried out on individuals sharing his paternal line.
For more information on T and the Jefferson family link see:

Update in progress: July 2013

General Fund

Current balance: $783.00

Type Amount Date Donor Note KitNum Donation Type
Credit $49.00 3/21/2014 Carol Butler     Memory Of
Credit $39.00 3/9/2014 Gary Ubert     Individual
Debit $39.00 1/13/2014     309130 Unknown
Credit $29.00 1/13/2014 Carol Butler     Individual
Debit $39.00 1/5/2014     N44690 Unknown
Credit $39.00 1/3/2014 Andrew Unrein SNP testing of Z709   Individual
Debit $39.00 12/16/2013     64704 Unknown
Debit $39.00 10/27/2013     E8011 Unknown
Debit $39.00 6/9/2013     191400 Unknown
Debit $39.00 4/24/2013     N40259 Unknown
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Project Stats

Statistic Type Count
Big Y 17
Combined GEDCOMs Uploaded 55
DISTINCT mtDNA Haplogroups 114
DISTINCT Y-DNA Confirmed Haplogroups 10
DISTINCT Y-DNA Predicted Haplogroups 1
Family Finder 146
Genographic 2.0 Transfers 27
Maternal Ancestor Information 253
mtDNA 201
mtDNA Full Sequence 89
mtDNA Plus 167
mtDNA Subgroups 0
Paternal Ancestor Information 446
Predicted Y-DNA Haplogroups 401
Total Members 639
Unpredicted Y-DNA Haplogroups 3
Unreturned Kits 6
WTY 11
Y-DNA Deep Clade (After 2008) 55
Y-DNA Subgroups 74
Y-DNA111 114
Y-DNA12 625
Y-DNA25 554
Y-DNA37 522
Y-DNA67 364