Personally I think there must be a misunderstanding somewhere about M222 originating in Co.Mayo. Just because there is a significant amount of M222 in Co.Mayo does not mean it originated there. Just speaking in terms of my own surname Co. Mayo had plenty of Davitt families around the mid 19th century, quite a few Devitt families and no McDevitt families (Griffiths Valuation). My own ancestors, Devitt, were in Co. Westmeath (6 families) at this time, with no McDevitt families in that county either, although McDevitt families were prevalent in Co. Donegal. Are the Devitt/Davitt families related to the McDevitts of Donegal or a separate family? I think they are the same for the most part and that's the whole reason I began DNA testing (see http://www.familytreedna.com/public/doherty/default.aspx?section=ycolorized ). My point is if the McDevitts truly are related to and descended from a branch of the O'Dochartaighs, then they did not originate in Co. Mayo but rather in Donegal and then migrated into Mayo. I think it stands to reason that other M222 Ulster families probably did the same. This does not point to the origin of M222 being in Ulster necessarily, but I think it does show how migration through the years can effect the overall DNA signature within a certain area and doesn't mean the SNPs of highest frequency originated there. On a side note according to the ISOGG-wiki site the "Big-Y" test is both a NextGen HiSeq. and Barcoding test. I think there was some question of this posted sometime yesterday. Brenden

It's worth pointing out that the "North Connacht" dialect of Irish as found (hanging on by it's fingertips!) in North Mayo shows heavy Ulster influence. So much so that's it's basically an intermediate dialect between Conamara (South Connacht) and Donegal Irish. One of my cluster members under DF41 has origins in Mayo (18th century) whereas the other three members of the cluster all have origins in West Ulster (Donegal/Tyrone), with his closest match having origins in Tyrone. So it's not just M222 that shows up due to this "internal migration" during the modern era. -Paul (DF41+) On Mon, Nov 11, 2013 at 5:02 PM, B. Davitt <[email protected]> wrote: > Personally I think there must be a misunderstanding somewhere about M222 > originating in Co.Mayo. Just because there is a significant amount of M222 > in Co.Mayo does not mean it originated there. Just speaking in terms of my > own surname Co. Mayo had plenty of Davitt families around the mid 19th > century, quite a few Devitt families and no McDevitt families (Griffiths > Valuation). My own ancestors, Devitt, were in Co. Westmeath (6 families) at > this time, with no McDevitt families in that county either, although > McDevitt families were prevalent in Co. Donegal. Are the Devitt/Davitt > families related to the McDevitts of Donegal or a separate family? I think > they are the same for the most part and that's the whole reason I began DNA > testing (see > http://www.familytreedna.com/public/doherty/default.aspx?section=ycolorized > ). > My point is if the McDevitts truly are related to and descended from a > branch of the O'Dochartaighs, then they did not originate in Co. Mayo but > rather in Donegal and then migrated into Mayo. I think it stands to reason > that other M222 Ulster families probably did the same. This does not point > to the origin of M222 being in Ulster necessarily, but I think it does show > how migration through the years can effect the overall DNA signature within > a certain area and doesn't mean the SNPs of highest frequency originated > there. > On a side note according to the ISOGG-wiki site the "Big-Y" test is both > a NextGen HiSeq. and Barcoding test. I think there was some question of > this posted sometime yesterday. > Brenden > > ------------------------------- > To unsubscribe from the list, please send an email to > [email protected] with the word 'unsubscribe' without the > quotes in the subject and the body of the message >