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Archiver > GENEALOGY-DNA > 2011-01 > 1294170268
From: Mike W <>
Subject: Re: [DNA] Recommendations for DNA testing
Date: Tue, 4 Jan 2011 13:44:28 -0600
References: <mailman.353.1294041646.32716.genealogy-dna@rootsweb.com><0760D09AD1F54DBE9ADC871DC43B4600@NEWGAMES><AANLkTik+wYcZmPSWmZyGYT1yGnwrMjgaNNoDeAJg--MU@mail.gmail.com><AANLkTi=kuQD=LFFNh8s6s-tk+w8OtYTeqMyqAcwSGxvG@mail.gmail.com>
In-Reply-To: <AANLkTi=kuQD=LFFNh8s6s-tk+w8OtYTeqMyqAcwSGxvG@mail.gmail.com>
To be a bit more specific, I called it a Genetic Distance (GD) of 2 at
12 for the father and son haplotypes because that there was a one step
difference at DYS439 and a one step difference at DYS389-1. The
reported alleles at DYS389-2 were also different, but the DYS389ii-i
alleles were the same so DYS389-2's difference was ignored.
My opinion is that for R1b1b2 (R-M269) people, 12 marker matches and
even in some cases differences, are practically worthless. The cost of
incrementally upgrading, at least with FTDNA, is such that it is
better to test deeply from the "get go."
We can argue about the definition of DNA genealogy or this thread's
purpose or different twists and turns, but nevertheless, R1b1b2
(R-M269) people should heavily consider testing to 67 markers* unless
their purpose for testing is very narrow, such as just trying to
confirm a relationship with another specific individual.
Regards, Mike
* Naturally, if they can afford it and they don't have a verified male
brother/father/true cousin already tested to 67.
----- Robert Stafford wrote:
> Was it an 11/12 match with a 2-step mutation or was it a 10/12 match.
---- Mike W wrote:
>> One of our project administrators had a GD of 2 across the first 12
>> markers with his son.
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| Re: [DNA] Recommendations for DNA testing by Mike W <> |