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Archiver > GENEALOGY-DNA > 2003-05 > 1051919295


From: "John F. Chandler" <>
Subject: Re: [DNA] Definitive list of loci/DYS numbers
Date: Fri, 2 May 2003 19:30 EST
In-Reply-To: george.jamieson@btinternet.com message <KPEGLHCOOGNJLFBCIIHHMEEDCMAA.george.jamieson@btinternet.com> of Fri, 2 May 2003 14:10:56 -0600


George wrote:
> The Clan Lindsay comparison chart is useful and shows the 47 DYS that I
> originally used. Some of these listed DYS numbers just don't appear, or at
> least in any results that I've seen, so why are they listed. They are not
> recent additions.

It would help to use the right terminology here. "DYS" is not a term
that stands on its own -- it is the first part of a label that also
includes a number, such as 19 or 388. The correct term to use here is
microsatellite or STR (short tandem repeat). In any case, if there are
markers that you've never seen before, they are probably the ones that
the BYU lab used on the special projects that were eventually spun off
to what became Relative Genetics. Some of those were abandoned for
obvious reasons, such as having too high a mutation rate or being the
same thing as another marker already in the repertoire. In any case,
they never reported absolute repeat counts for those markers anyhow, so
you would do well to forget about them.

John Chandler

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