DNA-NEWBIE-L ArchivesArchiver > DNA-NEWBIE > 2010-08 > 1280791576
From: Nelda Percival <>
Subject: Re: [DNA-NEWBIE] Matches...?
Date: Mon, 2 Aug 2010 18:26:16 -0500
First I'm sure you know this but I'll say it anyway. It is believed all men living today descend from what the genetists have named Genetic Adam not to be confused with Bibical Adam.
He had descendants and they developed mutations (of course over thousands of years) and they developed new haplogroups. So according to that, all males are related just some thousands of years apart. If you view the Haplotree you'll see what I mean. Now because of this you can have hundreds of matches at the lower numbers (12 - 25) or even just a few... but because of this I pretty much ignor anything below 37 markers. I as an admin, I use the distance of four steps for a cut off, more then four steps they are still related but not with in the time frame of the use of surnames. (Exception - you have to look at whether the markers are fast or slow markers. and... if there are any unusual results.. this could mean that you could extend to a higher number for the relationship.)
So genetically you are related to those men.
Now in your case as with most Irish/Scottish, you have to understand the ways of the Clans. They adopted families into the clan and sometimes they would adopt the clans surname.. so a possible reason for matching DNA without matching surnames. There is also the Non Parental Events, which could be anything from unrecorded adoption of a male child to a rape to an affair. (Don't be judgemental... most were taking in a child from a family that died off)
There isn't much you can do to get a match... Wait, or recuite new people to test.
If your interested in finding the family members of your non Paternal and / or non Maternal lineages you can test for the family finder - non paternal - its like your dad's mother's mother and father....or the same for your mother's ancestors.
But here we have a problem... To find out how or why you match someone; you need excellent paper trails. But a non match is not like with Y-DNA or even MTDNA, in that the markers tested are autosomals and they combine and recombine with each generation. So you may or may not inherit a measurable segment. Thus a non match does not mean your not related.
hope this helps you think about your next steps.
Admin Gilpin, Gillock, Bonstein
Nelda L. Percival
SSGT, E6, US ARMY ret.