This cushtic nonsense needs to die

The alchemist

The alchemist

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Shimbiris said:
Excellent work, walaalkay. This is exactly what I was referring to—how these models can be manipulated in countless ways to inflate or deplete Arabian ancestry (or any other ancestry) depending on how they're structured. The key takeaway is that when you collate Natufian and Yemeni together, or Natufian, Yemeni, and IBM within a model that also includes Dinka and Mota, most Somalis only vary by ~2% in total MENA vs. SSA ancestry. The same pattern holds if you use Vahaduo PCA—the clustering remains tight.

Anyone who fits within that range or clusters closely with other Somalis while claiming to have real, recent foreign admixture is extremely unlikely—to the point of practical impossibility. Even funnier? The Puntland samples from various studies show "diversity" in Iron Age Yemeni ancestry when you run a simple "Natufian, Yemeni, Mota, Dinka" model—some show 10%+ Yemeni, while others are well below 10%.

How is that possible when they form a tight cluster for total MENA and SSA ancestry? Not even genetic recombination could explain it. The idea that all this variation magically normalizes within a few percentage points in terms of overall admixture levels while supposedly representing wildly different levels of recent components is absurd. It's blatantly clear that the models are simply picking up on and being skewed by other things like shared drift patterns and individual segmental differences, not real, recent foreign input.

But I do think the models probably make more sense when you look at averages and run something like "Mota, Dinka, Natufian, IBM and Yemeni" alongside other Horners. Those levels may very well be accurate for Somalis but we'll see as more aDNA rolls in and I'll noddle around some more in the future.
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I think with G25, it is a good tool, it just depends on how you use it. One has to use clever ways to control the results. I did that by doing it in a very simple way although it is not intuitive unless one is familiar with some experience.
 
The alchemist

The alchemist

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@Fez @iley

I checked out your coordinates.

Iley got real admixture from some type of Oromo mixed with Nilo-Saharan, backed with some Bantu. This could be of a recent ancestry from the south. Maybe one grandparent was Warday?
1742235854947.png


It seems the Emirati samples reduced your fit tremendously. But you definitely have some recent ancestry from a non-Somali source. The fact that Nilo-Saharan, Bantu, and Oromo pop up, makes me think maybe one of your grandparents came from the south.

Fez, you're full Somali.
1742236010893.png
 
NidarNidar

NidarNidar

♚Sargon of Adal♚
VIP
The alchemist said:
@Fez @iley

I checked out your coordinates.

Iley got real admixture from some type of Oromo mixed with Nilo-Saharan, backed with some Bantu. This could be of a recent ancestry from the south. Maybe one grandparent was Warday?
View attachment 357257

It seems the Emirati samples reduced your fit tremendously. But you definitely have some recent ancestry from a non-Somali source. The fact that Nilo-Saharan, Bantu, and Oromo pop up, makes me think maybe one of your grandparents came from the south.

Fez, you're full Somali.
View attachment 357259
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Run mine while your at it:)
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Fez

Fez

The alchemist said:
@Fez @iley

I checked out your coordinates.

Iley got real admixture from some type of Oromo mixed with Nilo-Saharan, backed with some Bantu. This could be of a recent ancestry from the south. Maybe one grandparent was Warday?
View attachment 357257

It seems the Emirati samples reduced your fit tremendously. But you definitely have some recent ancestry from a non-Somali source. The fact that Nilo-Saharan, Bantu, and Oromo pop up, makes me think maybe one of your grandparents came from the south.

Fez, you're full Somali.
View attachment 357259
Click to expand...

Funnily enough 23andme didn't register me as full Somali but done so for the brother @iley.

This might prove his kind of ancestry is way more common than we think
 
I

iley

giire12 said:
Old version

View attachment 357106


New version

View attachment 357107
Click to expand...

The alchemist said:
@Fez @iley

I checked out your coordinates.

Iley got real admixture from some type of Oromo mixed with Nilo-Saharan, backed with some Bantu. This could be of a recent ancestry from the south. Maybe one grandparent was Warday?
View attachment 357257

It seems the Emirati samples reduced your fit tremendously. But you definitely have some recent ancestry from a non-Somali source. The fact that Nilo-Saharan, Bantu, and Oromo pop up, makes me think maybe one of your grandparents came from the south.

Fez, you're full Somali.
View attachment 357259
Click to expand...
Very interesting, 3/4 of my grandparents are wacbuudhan abgaal, So this makes sense
 
G

giire12

iley said:
Might be, my question is I wonder what 23andme considers to be 100% Somali
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Exactly, this is my whole point, what sample is used to reach 100% Somali. I started with 83% Somali, with every update the percentage kept on reducing till it reached 73.8% at the moment, others got updated from 95% up to 100%. I took it personal but still confusing for me on that part, so i am investing time on what sample was used to update their results.
 
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