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Archiver > GENEALOGY-DNA > 2006-07 > 1154060141


From: "William Hurst" <>
Subject: RE: [DNA] SMGF Update - mtDNA Database
Date: Fri, 28 Jul 2006 00:15:41 -0400
In-Reply-To: <004301c6b1e9$27bf42a0$0401a8c0@Technodwmlaptop>


Hi all,

I tried the brand-new SMGF mtDNA database. I'm sure this will be a valuable
addition to the existing databases in the future, but as of now they only
have 4,092 mtDNA entries, about one-ninth the size of FTDNA's mtDNA
database. And it shows.

I looked for haplogroup K's, of course. I first input my 12 mutations. No
luck. You can specify 0, 1, or 2 differences from what you input. At 2
difference, I had some matches; but they were ones missing the specific
mutations which makes my haplotype unusual.

Then I put in just the six basic K mutations: 16224C, 16311C, 16519C, 073G,
263G, 315.1C. I got one perfect match, which is interesting because there
are none of those in MitoSearch or in the K Project. But in a later search,
I discovered that it only matched because 497T was listed as incomplete for
that particular person. In other words, no perfect match at all. At one
difference, there were six which added 497T and 2 which added 309.1C. At two
differences the total count was 50, but that included some which were
missing 16224C and 16311C. In other words, they were not K's at all. So when
looked at 1 and 2 differences concentrate on those which add extra
mutations, not subtract the ones you specify.

Next, from the six basic mutations, I added 146C, 152C, and 498- (deletion)
- a perfect subclade K1c. Six matches. Adding 16320T for a perfect K1c2 also
gave six matches. Since those are more than the numbers found in the K
project I was impressed, but I could not find any with the 522- and 523-
deletions or the 508G mutation which show up in the Project.

Adding 497T to the basic six gave six perfect matches. Further adding 16234T
and 114T, which is the most common haplotype in the K Project (a K1a1b1a
variety) with nine examples, gave zero matches! At one difference, there
were two hits which added 16223T, another K1a1b1a variety which has three
examples in the Project. Maybe there are more folks with ancestors from
Britain in the database so far than from Eastern Europe.

Adding to the basic six 146C, 152C, and 512C, another Ashkenazi subclade,
gave two matches, both from Russia. Yet another Ashkenazi subclade is K2a2a,
which adds 16524G and 195C to the basic six. Got zero matches v. five in the
Project.

I could keep going, but you get the point.

Another feature of the database is the pedigree shown for every match. That
was working for me at first, but then it quit. I probably did something
affecting the popup settings. Now it's working again! Tricky. Anyway, lots
of luck finding a cousin. I tried my "Kelly sisters" H1* haplotype and got
five perfect hits, about what they now have at FTDNA.

Be sure to click on "The Database" at the top of the page, then
"Mitochondrial Database," then the various subtabs on the left, including
"Statistics."

Bill Hurst


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