Saturday, February 28, 2009

Of haplotypes and subclades

If those terms don't mean anything to you, don't feel bad. You'd have to be fairly obsessed with the field of genetic genealogy to be familiar with them.

In researching my own genetic origins, I have found that my paternal ancestry is part of Haplotype I. You can see from this map of Europe, that it's fairly common on that continent.

The eggheads have computed the rise of the haplotype to about 28,000 years ago.

Obviously, it's splintered since then.

Those splinters are known as "subclades."

A couple of my recently-discovered long-lost Morgan cousins have had their DNA tested and been told that we belong to subclade I2b.

But, in reading about it online today, I am beginning to think there may be a problem with that. Our YCAII markers (19,19) don't seem to fit nicely into that pigeon hole . . . then, again, I'm not a geneticist, so what do I know?

Guess this means I need to do a little more reading.

It's stuff like this that will kill a weekend for a genealogy geek . . .

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Blogger wsmv said...

More specifics (thanks to cousin Ron in Temcula) whose deep testing shows our bunch of Morgans are M223+, but negative on other markers within I2b1 (especially M284 and P78).

He's been swapping emails about this with Ken Nordtvedt, who theorizes that our haplotype "looks like an unusual cluster of Continental 2."

Watch this space for more updates on that.

What our bunch would *REALLY* like to do is locate a descendant of Mark Morgan (1712-1792) of Bladen County, North Carolina, who'd be willing to do a DNA test . . . do ye socks know anybody who might fit that description?!

10:10 AM  

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