GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2005-10 > 1128731942
Subject: Re: [DNA] S21+ extends from 37 markers to 48 markers
Date: Sat, 8 Oct 2005 01:39:02 +0100
have any of the null439 group ordered SNP tests (including S21) or extra
STRs from DNA-FP (including DYS464X)?
----- Original Message -----
From: "Leo W. Little" <>
Sent: Saturday, October 08, 2005 1:21 AM
Subject: [DNA] S21+ extends from 37 markers to 48 markers
> Hi Elton,
> Please see http://www.geocities.com/null439/ for a group of DNA test
participants who had a "null" value at DYS439 when tested by Family Tree
> Several participants were also tested by the Sorenson Genetics lab (which
does testing for DNA Heritage, Relative Genetics, and SMGF) and found to
have a value of "12" at DYS439.
> FTDNA and Sorenson Genomics use different primer sets. For the "null439"
group, it's likely that the FTDNA primer is unable to sync up properly on
DYS439 due to a SNP in the flanking region of the marker.
> The same must be happening in your case with the SG primer for DYS448.
> To date, we've found 29 participants from 10 different surnames who all
have a null439. Our mutual results indicate we probably shared a common
ancestor 800 to 2000 years ago, or before the dawn of surnames in the
> With dilligent searching and querying, you might be able to find others
who have a null at DYS448 when tested by DNA Heritage, Relative Genetics, or
> Best Regards, Leo
> Leo W. Little
> Little DNA Project, et al