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Archiver > GENEALOGY-DNA > 2012-11 > 1353551684


From: Ann Turner <>
Subject: Re: [DNA] Geno 2.0 - First Look!
Date: Wed, 21 Nov 2012 18:34:44 -0800
References: <BLU151-W640013D3D9FF886C6041FAB5540@phx.gbl><008101cdc84a$8ed5be00$ac813a00$@net><CAA-Ub_CvwYdKgS2ofi=7gvFHOUABL901rhPjriOs5ueYute82g@mail.gmail.com><00ae01cdc850$59edd4b0$0dc97e10$@net>
In-Reply-To: <00ae01cdc850$59edd4b0$0dc97e10$@net>


I agree about the mtDNA data. We know that multiple probes were used for
each position, and some of those could be on the reverse strand. That would
explain why C showed up instead of G.

Ann Turner

On Wed, Nov 21, 2012 at 5:26 PM, Tim Janzen <> wrote:

> Dear Ann
> We know per CeCe's summary at
>
> http://www.yourgeneticgenealogist.com/2012/07/national-geographic-and-family
> -tree-dna.html that 55% of the SNPs on the Geno 2.0 chip are also on the
> Family Finder chip. My notes from the FTDNA conference indicate that
> Spencer did indeed say that 50,000 to 100,000 SNPs of the SNPs found on
> Geno
> 2.0 are also found on the FF chip (Illumina OmniExpress). All of the
> autosomal SNPs in the Family Finder data have rs numbers. It will be
> interesting to see what the data looks like for true autosomal chromosomes.
> I think that CeCe is correct that the first screen shot is showing
> mtDNA data. Note that mtDNA position 8860 is
> http://www.phylotree.org/tree/subtree_R0.htm is the location for the SNP
> that defines mtDNA haplogroup H2a2a. Note that mtDNA position 15924 is the
> location for the SNP that defines mtDNA haplogroup R0a2b. MtDNA position
> 16284 is the location for the SNP that defines mtDNA haplogroup H6a1b1.
> Thus it appears that the SNP that the Genographic Project calls
> "105SNP16284RA_G" is the SNP that defines mtDNA haplogroup H6a1b1.
> Sincerely,
> Tim Janzen
>
> -----Original Message-----
> From:
> [mailto:] On Behalf Of Ann Turner
> Sent: Wednesday, November 21, 2012 4:50 PM
> To:
> Subject: Re: [DNA] Geno 2.0 - First Look!
>
> Exactly what I was wondering about. I don't necessarily expect all SNPs to
> have rs numbers, but some of them should. Someone has been quoted as saying
> that 50,000 to 100,000 SNPs overlap with the FF chip.
>
> At first I thought the final two letters (e.g. G_A for the first item)
> represent the possible alleles, but that theory quickly degenerated.
>
> Ann Turner
>
>
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