GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2006-07 > 1154199241
From: "John Smeltzer" <>
Subject: Re: [DNA] 12 Marker Y-DNA Matchs - Where do you go from there?
Date: Sat, 29 Jul 2006 12:54:01 -0600
In my case the Haplogroup is supposedly Deep SNP confirmed at I1a ... which
isn't rare by any means but certainly a smaller group than the R1b's it
appears. And, I absolutely agree Diane that in cases where one is trying
to pursue the DNA yielded leads with the greatest probability of success I
would place my bets on surname matches or near matches AND would subsidize
the testing as necessary. Then I would focus attention on the details of
the paper trail on these new DNA confirmed leads. But beyond that....the
period that predates surnames also intrigues me. I currently don't chose
to focus on these lower level matches (hence my question "should I be?") for
the efficiency reasons you describe....but what about that period just
before surnames developed and during the period of development?? Isn't
that period and beyond just as intriguing??
----- Original Message -----
From: "Diana" <>
Sent: Saturday, July 29, 2006 11:27 AM
Subject: RE: [DNA] 12 Marker Y-DNA Matchs - Where do you go from there?
> If your haplotype is rare, you aren't going to get the hundreds of matches
> gentleman did. As Sharon said, he is almost certainly R1b, so he will not
> anything meaningful below 37 markers, and IMO, he should ignore lower
> matches outside his surname.
> I also think you are attaching too much significance to 22/25 and 31/37
> if they are outside your surname. Those are low level matches. Outside
> surname, I would ignore them, even with a rare haplotype (even 3% of a
> population is a LOT of people). I'm told about 40% of people tested have
> match "out of the gate" (the percentages are actually much higher in my
> projects). IMO, you simply don't have a match yet. The best way to speed
> getting a match is to start subsidizing the testing of people with your
>> -----Original Message-----
>> From: Vincent Vizachero [mailto:]
>> Sent: Saturday, July 29, 2006 9:42 AM
>> Subject: Re: [DNA] 12 Marker Y-DNA Matchs - Where do you go
>> from there?
>> On Jul 29, 2006, at 9:15 AM, Diana wrote:
>> > Matches at 12 markers outside your surname are almost always a
>> > coincidence
>> > (i.e., insignificant). I would ignore them, as FTDNA suggests. I
>> > would even
>> > ignore a 25/25 match outside my surname.
>> I mostly agree with Diana, but I would be less dismissive of non-
>> surname matches at 25 markers if your haplotype is somewhat unusual
>> (as mine is). A couple of my marker values are pretty rare (i.e.
>> found in less than 3% of I1a samples), so I'd sit up and take notice
>> of a 25/25 match.
>> If you've got lots of close matches at 25 markers then you could run
>> yourself ragged investigating and/or contemplating them all. My
>> closest matches are 22/25 and 31/37, and they are giving me some
>> interesting historical (pre-genealogical) theories to contemplate.
>> But that's just me.
> Census images 1901, 1891, 1881 and 1871, plus so much more.
> Ancestry.com's United Kingdom & Ireland Collection. Learn more:
|Re: [DNA] 12 Marker Y-DNA Matchs - Where do you go from there? by "John Smeltzer" <>|