DNA Adventures: Me and my mum’s mtDNA – Range 16001 to 16519

I have recently received a flurry of messages and emails after a series of articles I wrote about various Gedmatch DNA analytic tools have been re-discovered. And more than a few enquiries about the Genebase DNA testing service. So I thought I’d share the results of my various Genebase tests.

This is not a paid plug for Genebase. I will say what I always say when it comes to my results via this testing service: it won’t be the right testing service for everyone. As with anything, do your due diligence about the DNA testing service you may wish to use, Google customer complaints…and see if the test you choose, and its results, will suit your needs.

I’m starting with my mum’s mtDNA. This is the DNA that is passed from mothers to daughters. They also pass it on to their sons. Sons, however, do not pass mtDNA on to their children – only their sisters will. That is the conventional wisdom and understanding to-date.

In this article, I will be posting the last mtDNA sequences first…and the beginning sequences last. This way, once the first sequence results are posted, kit will appear on this website in chronological order.

Just so we all know what we’re looking at, here are some illustrations of mtDNA:

Mitochondrial DNA (mtDNA) is the small circular chromosome found inside mitochondria. These organelles found in cells have often been called the powerhouse of the cell. The mitochondria, and thus mitochondrial DNA, are passed only from mother to offspring through the egg cell

As you can see, mtDNA looks very different from the 23 chromosomes that form autosomal DNA (the DNA you inherit from both parents).

My mum’s mtDNA: Range 16001 to 16519

To my fellow Old Ninety-Six County, South Carolina cousins, this is the female line this DNA covers:

My mum < Pauline Matthews < Gertrude Harling < Aurelia Holloway < Amanda Peterson < Violet Williams < Moses Williams, Sr’s unknown first wife (not Mariah Stallsworth).

Note: Please click each image to see a larger version.

Genebase uses an analytical comparison measurement called RMI,which you will see in the numbers provided in the bar graph images below. RMI (Relative Match Index) is a measure of how closely your Y-DNA and mtDNA haplotype matches those of a defined population group as compared to all other population groups in the comparison. For example, a RMI of 100 means that you are 100 times more likely to belong to that population set as compared to the rest of the populations.

For the images below, Mutation = 0 is a perfect match / Mutation = 1 or more means a mutation has occurred in the comparison mtDNA matches.

That Swedish result? Yeah, 5 adults sitting around a table saying: wwwwhhhaaattt???!!?? We’re still working on that. It’s not a mistake or a glitch – as you’ll see in tomorrow’s post.

So…there’s quite a bit to take in. And this only covers the last of my mum’s mtDNA sequences. Feel free to ask questions! I appreciate this takes a while to wrap one’s head around. Dorothy, we’re not in autosomal DNA territory any more!

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