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tatals
11-27-2019, 11:01 PM
Somebody approached me on Facebook to ask about my Euclidean distances map from the K36 Ancestry Report. She and I seem to have similar ancestry - regular Brazilian heritage:

She - Italian, Portuguese, some French, about 15% Amerindian and 5% SSA.
I - Italian, Portuguese (with some 12-15% Moorish), no known French ancestry so far, about 7% Amerindian, and 3% SSA.

Although it has some differences, both of us have around 80% European, but our Euclidean distances maps look VERY different: hers has much closer distances, while mine is pretty vague. Could my higher Middle-Eastern heritage be the cause? Does anyone have any other ideas why this could be happening? Here are the maps:

Hers:

34971

Mine:

34972

Ruderico
11-27-2019, 11:06 PM
K36 is not great, but there's plenty of variation even within the same country, so you can imagine how things can get with people of mixed background

tatals
11-27-2019, 11:18 PM
K36 is not great, but there's plenty of variation even within the same country, so you can imagine how things can get with people of mixed background

Yes, that's true. What seemed odd to us was the fact that our K36 percentages on GEDMatch are not even that different (I'll post them below). But you're right, it makes sense that we are probably making the calculators go a little wild.

__

(I need to improve my skills on posting here in order to avoid making such long posts, but there it goes: )


Her GEDmatch K36 percentages:

Amerindian 13.25 Pct
Arabian -
Armenian 0.49 Pct
Basque 1.31 Pct
Central_African -
Central_Euro 2.97 Pct
East_African 0.44 Pct
East_Asian -
East_Balkan 1.79 Pct
East_Central_Asian -
East_Central_Euro 1.58 Pct
East_Med 0.44 Pct
Eastern_Euro 3.25 Pct
Fennoscandian 2.53 Pct
French 3.48 Pct
Iberian 19.82 Pct
Indo-Chinese -
Italian 19.62 Pct
Malayan -
Near_Eastern 0.80 Pct
North_African 2.61 Pct
North_Atlantic 3.37 Pct
North_Caucasian 3.03 Pct
North_Sea 8.63 Pct
Northeast_African 0.85 Pct
Oceanian -
Omotic 0.86 Pct
Pygmy 0.66 Pct
Siberian -
South_Asian -
South_Central_Asian -
South_Chinese -
Volga-Ural -
West_African 2.96 Pct
West_Caucasian 0.91 Pct
West_Med 4.34 Pct


________________________
Mine:

Amerindian 5.80 Pct
Arabian 1.02 Pct
Armenian 0.28 Pct
Basque 2.30 Pct
Central_African 1.36 Pct
Central_Euro 5.54 Pct
East_African -
East_Asian -
East_Balkan 4.15 Pct
East_Central_Asian -
East_Central_Euro -
East_Med 0.90 Pct
Eastern_Euro 5.40 Pct
Fennoscandian -
French 3.10 Pct
Iberian 16.51 Pct
Indo-Chinese 1.15 Pct
Italian 16.06 Pct
Malayan -
Near_Eastern 7.45 Pct
North_African 2.47 Pct
North_Atlantic 6.96 Pct
North_Caucasian 2.77 Pct
North_Sea 8.95 Pct
Northeast_African 1.47 Pct
Oceanian -
Omotic -
Pygmy -
Siberian -
South_Asian -
South_Central_Asian -
South_Chinese -
Volga-Ural -
West_African -
West_Caucasian 1.22 Pct
West_Med 5.12 Pct

JJJ
11-27-2019, 11:29 PM
Mine

Population
Amerindian -
Arabian -
Armenian -
Basque 6.92 Pct
Central_African -
Central_Euro -
East_African -
East_Asian -
East_Balkan -
East_Central_Asian -
East_Central_Euro 2.30 Pct
East_Med 0.86 Pct
Eastern_Euro -
Fennoscandian -
French 6.90 Pct
Iberian 29.94 Pct
Indo-Chinese -
Italian 23.06 Pct
Malayan -
Near_Eastern -
North_African 5.40 Pct
North_Atlantic 4.72 Pct
North_Caucasian -
North_Sea 4.61 Pct
Northeast_African -
Oceanian 0.28 Pct
Omotic -
Pygmy -
Siberian -
South_Asian 2.07 Pct
South_Central_Asian -
South_Chinese -
Volga-Ural 1.13 Pct
West_African 1.35 Pct
West_Caucasian -
West_Med 10.45 Pct

You got less Italian percentage than me, so you will realize the validity of the this test.

tatals
11-27-2019, 11:33 PM
Wow! 7% less! It makes no sense at all!

tatals
11-27-2019, 11:38 PM
But another weird thing I've noticed is that, despite all the weirdness regarding K36, my map is not that different from the ones that ph2ter made:

34975

34976

34977

tatals
11-28-2019, 03:32 AM
But another weird thing I've noticed is that, despite all the weirdness regarding K36, my map is not that different from the ones that ph2ter made:

34975

34976

34977

Reposting pictures.

Old map:

34982


Updated map:

34983


Blue map:

34984

Archetype0ne
11-28-2019, 03:38 AM
Reposting pictures.

Old map:

34982


Updated map:

34983


Blue map:

34984

How does one go about getting an Euclidean distances map?

tatals
11-28-2019, 12:37 PM
How does one go about getting an Euclidean distances map?

Apparently, I can't post links, so I'll try messaging you.

Caius Agrippa
12-05-2019, 06:56 PM
You probably don't have 12-15% ''true'' Moorish and 3% SSA. Part of your Middle Eastern is probably Italian and other part of it plus the 3% SSA in GEDmatch comes from the Iberian North African. I have very confusing results too in different calculators, but knowing my ancestry make me realize that it would be impossible for me to have real 10% Middle Eastern/West Asian as MyHeritage gives me. Southern Italians and even Northern Italians have more West Asian/eastern med components when compared to Iberians.
I was supposed to be mainly Iberian + Northern Italian with some South Italian, SSA and Amerindian and some calcs model me as being 25% some West Asian/Caucasus population (Turkish, Azerbaijani, Balkar, Kumyk etc) or 50% some Eastern Med population (Sicilian, Albanian, Serbian, Greek, Montenegrin, Ashkenazi/Sephardi etc). Or it came from the Italians or some of my Iberian ancestors were actually Jews, West Asian is almost absent in Iberians.

Here in Brazil we are used to think in Italians as being semi-nordics but the reality is that they have more eastern components than Iberians apart from North African that is much higher in Iberians.