FTDNA has added 177 branches below I-PF4190, we can show only 12 branches on this 2021-01-27 draft tree

Click here to download our 2021-01-27 draft tree for I-PF4190

Over the past few months, FTDNA has added many new branches to their Haplotree and Big Y Block Tree, these branches are based on public genomes: ancient DNA samples, modern scientific samples etc. At the moment only the branches and SNPs are visible, FTDNA doesn't identify the samples. But we can compare the SNPs to public data and identify the source of FTDNA's updates.

In 2013, Paolo Francalacci published his survey:  Low-Pass DNA Sequencing of 1200 Sardinians Reconstructs European Y-Chromosome Phylogeny (2013). Of the 1200 Sardinian men, 465 (37%) belonged to I-M26. Of the 465 I-M26 men, 346 belonged to I-PF4190 (29% of all men in the study, and 74% of the I-M26 men).

So most I-M26 men in Sardinia belong to I-PF4190, and according to trees based on Francalacci's sequencing, I-PF4190 had a rapid population increase starting at its earliest stages.

FTDNA recently updated its haplotree and Big Y Block tree and added approximately 177 branches below I-PF4190. Almost all of the information came from Francalacci's sequences, and maybe a few Simons Genome Diversity Project (HGDP) samples are included. Some of the SNPs have PF prefixes, these were named by Paolo Francalacci, and other SNPs have Z prefixes, these were named by volunteers using Francalacci's and other public sequences.

There are five branches immediately below I-PF4190. There are now 9 Big Y samples in I-PF4190, and the samples belong to 3 of the 5 branches:

• This update of our draft tree shows a new sample from Libya in the I-Z26452 branch, he is the only Big Y sample in this branch but it contains 34 samples from Francalacci's study. We have displayed some of Francalacci's samples on our draft tree for greater context.
• The I-PF4295 (I-PF4294) branch contains 5 Big Y samples, 4 have likely German origin and one is from Tunisia, it also contains 231 samples from Francalacci's study. 
• The I-Z26532 (I-Z26527) branch contains 3 Big Y samples (French, Czech and German?) and 23 samples from Francalacci's study.

We don't show the other two branches on our tree because they don't contain any Big Y samples. The I-PF4225 branch contains 32 samples from Francalacci's study and the I-PF4241 branch contains 27 Francalacci samples.

************************************

This update also shows new branches below I-BY67299, this is the Barclay cluster from Scotland/northern England.

The new I-FT406608 branch is specific to some other families from Scotland (Affleck etc).

I-Y160182 is a new branch below I-CTS787, it contains a Danish sample and an American family of unknown origin. I-Y160182 is parallel to the large I-Z125 branch which contains the large I-Z113 branch from Iberia and France. There is also another I-CTS787* sample from England. Thanks to some recent Big Y-700 results we have been able to determine the placement of some SNPs as equivalent to CTS787 or equivalent to Z125.

Click here to find our previous tree for I-CTS11338
Click here for FTDNA's public haplotree for I-CTS11338
Click here for YFull's I-CTS11338 (I-Z105) tree
Click here for a brief description of the I-CTS11338 haplogroup