Click here to download our 2019-09-05 draft tree for I-Y3723
This tree shows several updates, indicated in red:
---A new I-Y3723* branch at the very top of the tree. You can also see two previous samples in the I-A22306 branch. These three samples belong to the poorly-defined Isles-D1 cluster. At this point, Isles-D1 contains everyone whose STR markers match the pattern for I-Y3723 but don't match the pattern for Isles-C, Isles-D2, Isles-D3/D99 or I-A10514.
I-Y3723 now has 5 immediate child branches, and maybe we will find more branches when more Isles-D1 men do Big Y tests. This is a rapid expansion that occurred approximated 3500 years ago according to YFull. I-Y3723 is almost exclusively British and Irish, and it's especially characteristic of Ireland and Scotland.
---I-A10514 has two additional samples and new branches and SNPs. More Big Ys are in progress. We don't have a good nickname for I-A10514, it contains a family named Todd, so sometimes we call it the Todd branch.
--this tree also shows a I-FGC7210 branch in Isles-D2. But this branch with two samples was already included in our previous tree, probably we neglected to remove the red color.
Click here to find our previous tree for I-Y3723
Click here for a brief description of the I-Y3723 haplogroup