Since you describe a what I think looks like many tiny segments (is that correct?
) that match at GEDmatch then I think that is a sign that you share the same ethnic (population) makeup with this individual through the X chromosome and you may share a lot of distant geographically based ancestry on that line. I'm guessing that it's extremely likely that they report 2 characters per position as well, since I only see either full base pair matches, or none... @Kathy Johnston: Regarding the small/tiny segments - yes, there are a great many small matching areas.
If he tested at 23and Me he will have an M___ ID number and you can ask him to check his ancestry composition on the X and see what the Speculative, Subregional resolution shows.
Be sure to ask him to look at Chromosome view and toggle over the populations.
While this may be possible (indicating shared geography), depending on size of segments, I think it is more due to fact that at any given position everyone has a 25% chance of matching as there are only 4 possible values for each position. I'm guessing that it's extremely likely that they report 2 characters per position as well, since I only see either full base pair matches, or none... Be sure to ask him to look at Chromosome view and toggle over the populations.
For example attached picture is my father to me(Male) on X. If he tested at then his ID starts with A___ and he may have an extensive pedigree listed there and you may find collateral lines down to present.
Even small segments can be significant for a male on the X because there is not the same likelihood of pseudo-segments caused by having two Xs.
If the person tested here at FTDNA, he may be available to answer your questions since most people who transfer to GEDmatch are approachable and may know their X ancestors.If he tested at then his ID starts with A___ and he may have an extensive pedigree listed there and you may find collateral lines down to present.Finding ancestors in common would be difficult in any case.Hello, I am adopted, and I have uploaded my kit to The image literally looks like a comb, with full base pair teeth. Two males with a 22 c M match is significant and most likely identical by descent but we still can't tell how far back in time the most recent ancestor is.This seems really curious to me - is it possible that this could be a closer match than the autosomal side would suggest? That is because a cousinship calculation by using the X alone is practically impossible.