Archiver > GENEALOGY-DNA > 2010-02 > 1266632815

From: steven perkins <>
Subject: Re: [DNA] FTDNA will introduce Family Finder (cM limit)
Date: Fri, 19 Feb 2010 21:26:55 -0500
References: <><>
In-Reply-To: <>

On Fri, Feb 19, 2010 at 8:27 PM, Gary Felix <> wrote:
> <I would be interested in seeing if FTDNA's Family Finder's 10cM limit
> effectively cuts off <most of these 18th century matches that we see.
> These older single segment matches <are the key to assigning a segment
> to an ancestor and manually separating out segment <ownership in more
> closely related individuals.

Also consider that FTDNA will use a lower number of SNPs than 23andMe
uses, 500 vs 700. So while the "length" may be greater, fewer matches
are needed in that to be considered IBD.

Steven C. Perkins

> Wayne,
>  I spoke with Bennett about Family Finder for over an hour about a week ago. I had the same concern as you as those with Mexican ancestry are showing many Jewish  "distant cousins" as evidenced by rare Jewish founder Mtdna or Ydna lines or confirmed Jewish origin.
> Bennett assured me that only the classification will be different than 23andme. Therefore anything over 5th cousin will be a distant cousin.  We should still be able to pick up founder effect in our ancestry.
> Gary
> Mexico DNA Project Admin.

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