FGC56883 is maybe immediately below Y4252: 2019-10-11 draft tree for I-L233

Click here to download our 2019-10-11 draft tree for I-L233

As mentioned in our previous post about I-L233, the major I-Y4252 haplogroup contains 22 immediate descendant branches. 14 branches are named (I-A7111 for example) and 8 branches are unnamed because these branches each contain only a single Big Y result at present.

There is a SNP that maybe is shared by 9 of these branches, it's called FGC56883. If this is true, then I-Y4252 has only 14 immediate descendant branches: I-FGC56883 and 13 additional branches. There doesn't seem to be any geographic pattern: I-FGC56883 contains some branches that have been found only in Great Britain and some branches that have been found in both Britain and continental Europe, but the Y4252+ FGC56883- group also contains some branches that have been found only in Great Britain and some branches that have been found in both Britain and continental Europe.

Unfortunately FGC56883 occurs inside a palindrome region and probably it won't be added to the official trees at FTDNA and at YFull etc.  And FGC56883 doesn't give clear results in Big Y testing.

There is one group where FGC56883 is clearly negative C-:
I-A7111,
I-Y32652 aka I-A15076,
I-Y86483 aka I-Y94320 ,
I-A19385
I-Y84928
and some I-Y4252* samples

And another group where FGC56883 has approximately equal number of positive T+ and negative C- reads or even greater number of positive T+ reads:
I-A417,
I-A19486,
I-FGC56815,
I-Y142672
I-Y33761
I-Y32657 aka I-A15050
I-A10033
and some I-Y4252* samples





Click here to find our previous tree for I-L233
Click here for a brief description of the I-L233 haplogroup