FTDNA has finally added the major I-FT129122 (I-Y137878) branch: 2020-04-08 tree for I-L160

Click here to download our 2020-04-08 draft tree for I-L160

In September 2019 we added the I-Y137878 branch to our draft tree and YFull added it in December 2019. This is one of 3 immediate descendant branches of I-PF4088. But I-Y137878 is quite small and only a few families are known to belong to this branch, they have English and Spanish origin. They all share some distinctive marker values: DYS447=20 or lower, and DYS425=10.

FTDNA placed one of the first samples in an I-PF088* branch, and the other sample in an I-CTS8386 branch below I-PF4088. But now that there are three samples, FTDNA has corrected their haplotree and created a new I-FT129122 branch (this is equivalent to I-Y137878). The two English samples are in the more specific I-CTS8386 branch.


Click here to find our previous tree for I-L160
Click here for a brief description of the I-L160 haplogroup