How much Subsaharian i have?

[dududud]

0,4% on the pre-beta 23andme, "Angolan & Congolese" (don't have that in my genealogy on the last 500 years old). I don't have on Myheritage and FTDNA.

V3 kit gedmatch (967,000 SNPs):

K13

South_Asian -
East_Asian 1.51 Pct
Siberian -
Amerindian -
Oceanian 0.26 Pct
Northeast_African -
Sub-Saharan 0.24 Pct


K15

South_Asian -
Southeast_Asian 1.15 Pct
Siberian -
Amerindian -
Oceanian -
Northeast_African -
Sub-Saharan 0.17 Pct

K36


Amerindian -
Armenian -
Central_African -
East_African -
East_Asian -
East_Central_Asian -
Indo-Chinese -
Malayan -
Near_Eastern -
North_African -
Northeast_African -
Oceanian -
Omotic -
Pygmy -
Siberian -
South_Asian -
South_Central_Asian -
South_Chinese -
Volga-Ural 0.95 Pct
West_African -
West_Caucasian -


World9 Admixture Proportions

East_Asian 0.96 Pct
African 0.23 Pct
Atlantic_Baltic 63.21 Pct
Australasian 0.17 Pct
Siberian -
Caucasus_Gedrosia 11.53 Pct
Southern 23.90 Pct


MDLP World Admixture Proportions

Caucaus_Parsia 10.13 Pct
Middle_East 10.02 Pct
Indian 0.57 Pct
South_and_West_European 50.97 Pct
Melanesian -
Sub_Saharian 0.34 Pct
North_and_East_European 27.96 Pct
Arctic_Amerind -
East_Asian -
Paleo_African -
Mesoamerican -
North_Asian -

So? 1%? 5%? Noise?

[Smeagol]

Seems like noise.

[dududud]

Seems like noise.

Even with 0.4% "Angolan & Congolese" on 23andme (v4 in my case)?

[dududud]

To compare with Helgenes50 results from Anthrogenica:

K13

North_Atlantic 48.95
Baltic 20.84
West_Med 17.61
West_Asian 3.34
East_Med 6.68
Red_Sea 0.72
South_Asian -
East_Asian -
Siberian -
Amerindian 0.87
Oceanian -
Northeast_African -
Sub-Saharan 0.98

K15

North_Sea 31.65
Atlantic 32.91
Baltic 7.98
Eastern_Euro 7.60
West_Med 12.56
West_Asian 2.49
East_Med 2.92
Red_Sea 0.79
South_Asian -
Southeast_Asian -
Siberian -
Amerindian 0.41
Oceanian -
Northeast_African -
Sub-Saharan 0.71

[Adamm]

Probably noise, no 'n' word pass for you!

[Lucas]

Lower K, more noise.

What is your SSA in Eurogenes K12, K11, K10 , K9?

[Smeagol]

Even with 0.4% "Angolan & Congolese" on 23andme (v4 in my case)?

I think so.

[Phenix]

Derisory scores like these are considered to be noises.

[dududud]

Lower K, more noise.

What is your SSA in Eurogenes K12, K11, K10 , K9?

Still on my old good boi V3 kit 23andme (rare version now)

K12
South Asian -
Caucasus 9.28 Pct
Southwest Asian 3.51 Pct
North Amerindian + Arctic -
Siberian -
Mediterranean 28.03 Pct
East Asian 0.57 Pct
West African -
Volga-Ural 3.48 Pct
South Baltic 9.45 Pct
Western European 25.92 Pct
North Sea 19.77 Pct

K11
South Asian -
Caucasus 9.66 Pct
Southwest Asian 3.56 Pct
North Amerindian + Arctic -
Siberian -
Mediterranean 30.13 Pct
East Asian 0.61 Pct
West African -
Volga-Ural 4.51 Pct
South Baltic 11.01 Pct
North Atlantic 40.53 Pct

K10
South Asian -
Caucasus 9.86 Pct
Southwest Asian 3.63 Pct
North Amerindian + Arctic -
Siberian -
Mediterranean 30.66 Pct
East Asian 0.81 Pct
West African -
East European 13.09 Pct
North Atlantic 41.95 Pct

K9
South Asian -
Caucasus 10.10 Pct
Southwest Asian 3.70 Pct
North Amerindian + Arctic -
Siberian -
Mediterranean 39.86 Pct
East Asian 0.92 Pct
West African -
North European 45.41 Pc


Conservative mode 90%
https://imagizer.imageshack.com/img923/6783/p6F5HJ.png

[Matxe92]

Doesn't the "noise" argument weigh less here, since we are dealing with two ethnicities that are very far apart (european/african)
Therefore less chance of it actually being noise, and stronger possibility it's actually true. Idk how long ur ancestors have been on the american continent, but it could easily be a possibility u have a distant african ancestor?

[Annihilus]

One way of looking at it is you have 1 full ssa ancestor 8 generation ago (out of 256), there are many more scenarios possible though.

[dududud]

Isn't the "noise" argument not so good here, since we are dealing with two ethnicities that are very far apart (european/african)
Therefore less chance of it actually being noise, and stronger possibility it's actually true. Idk how long ur ancestors have been on the american continent, but it could easily be a possibility u have a distant african ancestor?

My cousin shares the same ancestors on the side of my maternal grandfather, Henri Sanna, and my maternal grandmother ... she does not get that subsaharian thing. My father no more. Most of my cousins who have ancestors in common with me (close or not), either.

And yes, I know my genealogy very well. On the side of Henri Sanna, they come largely monserrato (in a an isolated village), but not coasts, and my maternal grandmother comes from Courcelles-lès-Lens over the last 500 years with distant alsacians ancestors (non jews).

My father has ancestors comes mainly from Gouy-Saint-André, in the North of France, and from Douai, Flanders, Wallonia, and an ancestor distant from Couhé.

Pre-beta cousin results:
https://imageshack.com/i/pmH1HDt2j

Beta version:
https://imagizer.imageshack.com/img921/8655/tczLzR.png


https://imagizer.imageshack.com/v2/1665x937q90/922/ldPV8s.png

[HelloGuys]

Probably noise, no 'n' word pass for you!

If I had 4% SSA could I say the N word? :coffee:

[dududud]

Doesn't the "noise" argument weigh less here, since we are dealing with two ethnicities that are very far apart (european/african)
Therefore less chance of it actually being noise, and stronger possibility it's actually true. Idk how long ur ancestors have been on the american continent, but it could easily be a possibility u have a distant african ancestor?

I live in France. Not in Canada, rolf. It's just a flag.

[dududud]

One way of looking at it is you have 1 full ssa ancestor 8 generation ago (out of 256), there are many more scenarios possible though.

Gedmatch would have already detected the "big" subsaharian part. Check Portuguese results...

I have ask David from Eurogene about subsaharian imput: "not really".

Weird.

[Alenka]

Noise level, so either none or a really negligible amount.

[Phenix]

If I had 4% SSA could I say the N word? :coffee:

Yeah brotha'.

[dududud]

Noise level, so either none or a really negligible amount.

What periode? Neolithic negroid? This is not detect of the Global 25?

[Annihilus]

Gedmatch would have already detected the "big" subsaharian part. Check Portuguese results...

I have ask David from Eurogene about subsaharian imput: "not really".

Weird.

Well what ever it is, it is almost gone now anyway.

[dududud]

Well what ever it is, it is almost gone now anyway.

Strangely, only 23andme detects this, neither Gedmatch, nor FTDNA, nor Myheritage and others have detected this to me. Maybe it could be an erroneous "interpretation" of another non-European (North African) or East Asian, or other contribution.

I would see with the update. But I know that before, in the version V3 of 23andme, this percentage disappeared in the conservative 90% mode.

My Global 25 via my V4 23andme kit:

Barcin_N,57
Yamnaya_Samara,32.8
WHG,9.8
Han,0.4



https://imagizer.imageshack.com/img921/4861/3mx5Fv.png

[HelloGuys]

Yeah brotha'.

Thanks bruh, I am going to talk with my blood brothers and free style rap :p

[Leto]

I live in France. Not in Canada, rolf. It's just a flag.
But are you a French-Canadian by birth?

[dududud]

But are you a French-Canadian by birth?

No. I live in France, i just love the Canada flag and Quebec.

My ethncity: 75% Northern France with distant central france (couhé) ancestors and alsacians + 25% sardinian. That's all.

[Leto]

Less than 1 percent means absolutely nothing. Don't rack your brains about it.

[Cumansky]

Post if you have:

https://www.theapricity.com/forum/showthread.php?285123-Post-quot-Black-quot-MDLP-K27-yourdnaportal-com

[dududud]

Less than 1 percent means absolutely nothing. Don't rack your brains about it.

I am interested in that. I wonder why Eurogene's David does not detect subaharian input after sending my autosomal. And that Gedmatch does not give a really significant percentage. I find that incomprehensible.

Sheit.

[Lemgrant]

https://permalinks.23andme.com/pdf/23-14_admixture_date_estimator.pdf

https://i.imgur.com/qajxGsA.png

[Snkves]

What's your MDLP K11?

[Voskos]

One drop.

[dududud]

What's your MDLP K11?

African 0.39 Pct
Amerindian -
ASI -
Basal 7.87 Pct
Iran-Mesolithic 1.16 Pct
Neolithic 41.81 Pct
Oceanic 0.09 Pct
EHG 21.39 Pct
SEA 0.91 Pct
Siberian -
WHG 26.37 Pct

[dududud]

Post if you have:

https://www.theapricity.com/forum/showthread.php?285123-Post-quot-Black-quot-MDLP-K27-yourdnaportal-com


Population
Percentage
Nilotic-Omotic
0.00%
Ancestral-South-Indian
0.00%
North-European-Baltic
22.84%
Uralic
0.00%
Australo-Melanesian
0.00%
East-Siberian
0.20%
Ancestral-Yayoi
1.01%
Caucasian-Near-Eastern
18.73%
Tibeto-Burman
0.00%
Austronesian
1.35%
Central-African-Pygmean
0.14%
Central-African-Hunter-Gatherers
0.00%
Nilo-Saharan
0.00%
North-African
1.29%
Gedrosia-Caucasian
9.99%
Cushitic
0.00%
Congo-Pygmean
0.00%
Bushmen
0.00%
South-Meso-Amerindian
0.00%
South-West-European
38.85%
North-Amerindian
0.00%
Arabic
2.65%
North-Circumpolar
0.00%
Kalash
0.00%
Papuan-Australian
0.24%
Baltic-Finnic
2.74%
Bantu
0.00%

= 0.38

[Snkves]

African 0.39 Pct
Amerindian -
ASI -
Basal 7.87 Pct
Iran-Mesolithic 1.16 Pct
Neolithic 41.81 Pct
Oceanic 0.09 Pct
EHG 21.39 Pct
SEA 0.91 Pct
Siberian -
WHG 26.37 Pct

Seems like a sure thing then.

[dududud]

Seems like a sure thing then.

Sure thing from 0.39? It is correct?

Like this totaly native from Northern French (Mostly North Western France with some distant alsacians side, he share the same alsacian ancestors) dude? It's a cousin of mine, zero sardinian, totaly native of France.

African 0.42 Pct
Amerindian -
ASI 0.22 Pct
Basal 4.60 Pct
Iran-Mesolithic 1.20 Pct
Neolithic 36.37 Pct
Oceanic 0.49 Pct
EHG 24.09 Pct
SEA 2.01 Pct
Siberian -
WHG 30.59 Pct


XC5325459

K13

Admix Results (sorted):

# Population Percent
1 North_Atlantic 41.28
2 Baltic 23.68
3 West_Med 16.88
4 East_Med 8.55
5 West_Asian 5.02
6 Red_Sea 1.79
7 Siberian 1.71
8 Sub-Saharan 0.47
9 East_Asian 0.36
10 Oceanian 0.27

Single Population Sharing:

# Population (source) Distance
1 West_German 3.78
2 South_Dutch 3.85
3 French 6.62
4 Austrian 7.35
5 East_German 9.06
6 Southeast_English 9.36
7 North_German 9.71
8 Southwest_English 10.96
9 Orcadian 11.03
10 North_Dutch 11.08
11 Danish 11.14
12 Hungarian 11.53
13 Irish 12.3
14 West_Scottish 12.74
15 Norwegian 13.05
16 Swedish 13.09
17 Spanish_Cataluna 13.82
18 Spanish_Galicia 14.47
19 Serbian 14.65
20 Portuguese 14.68

Mixed Mode Population Sharing:

# Primary Population (source) Secondary Population (source) Distance
1 80.3% French + 19.7% Finnish @ 1.44
2 76.7% French + 23.3% Southwest_Finnish @ 1.56
3 81.9% French + 18.1% East_Finnish @ 1.68
4 81.2% French + 18.8% Estonian @ 1.71
5 58.5% Swedish + 41.5% North_Italian @ 1.92
6 83.1% French + 16.9% Lithuanian @ 2.21
7 58.5% French + 41.5% East_German @ 2.23
8 82.2% South_Dutch + 17.8% Serbian @ 2.24
9 81% French + 19% Belorussian @ 2.25
10 53.8% North_Swedish + 46.2% Spanish_Andalucia @ 2.35
11 85.2% South_Dutch + 14.8% Moldavian @ 2.35
12 82.2% French + 17.8% Kargopol_Russian @ 2.36
13 51.1% North_Swedish + 48.9% Spanish_Extremadura @ 2.37
14 78.6% French + 21.4% Polish @ 2.39
15 75.9% French + 24.1% South_Polish @ 2.4
16 81.1% French + 18.9% Estonian_Polish @ 2.4
17 80.9% French + 19.1% Russian_Smolensk @ 2.44
18 53% French + 47% Austrian @ 2.47
19 85% South_Dutch + 15% Croatian @ 2.47
20 85.6% South_Dutch + 14.4% Romanian @ 2.49

[Cumansky]

Population
Percentage
Nilotic-Omotic
0.00%
Ancestral-South-Indian
0.00%
North-European-Baltic
22.84%
Uralic
0.00%
Australo-Melanesian
0.00%
East-Siberian
0.20%
Ancestral-Yayoi
1.01%
Caucasian-Near-Eastern
18.73%
Tibeto-Burman
0.00%
Austronesian
1.35%
Central-African-Pygmean
0.14%
Central-African-Hunter-Gatherers
0.00%
Nilo-Saharan
0.00%
North-African
1.29%
Gedrosia-Caucasian
9.99%
Cushitic
0.00%
Congo-Pygmean
0.00%
Bushmen
0.00%
South-Meso-Amerindian
0.00%
South-West-European
38.85%
North-Amerindian
0.00%
Arabic
2.65%
North-Circumpolar
0.00%
Kalash
0.00%
Papuan-Australian
0.24%
Baltic-Finnic
2.74%
Bantu
0.00%

= 0.38

>1% you have. Sometimes these company use smoothing method but in your case they did good job.

[JosephK]

You must be as Black as the Ace of Spades!

[luc2112]

It's probably SSA North-African coming from the Iberian peninsula, Spaniards reach up to 3% of SSA.

[dududud]

It's probably SSA North-African coming from the Iberian peninsula, Spaniards reach up to 3% of SSA.

I don't have spaniard ancestors.

[dududud]

>1% you have. Sometimes these company use smoothing method but in your case they did good job.

Why some Hungarian have more subsaharian on this test than me?

[Pine]

Lower K, more noise.

What is your SSA in Eurogenes K12, K11, K10 , K9?

What about me?

K13

Sub-Saharan 1.16 Pct
Northeast_African 0.18 Pct

K9

West African 1.20 Pct

K9b

Sub-Saharan_African 1.64 Pct

K10

West African 1.20 Pct

K11

West African 1.19 Pct

K12

West African 1.18 Pct

K12b

East African 1.44 Pct
West African 0.60 Pct

Noise or real?

[luc2112]

I don't have spaniard ancestors.
This is your test, right?
https://www.theapricity.com/forum/showthread.php?297687-How-much-Subsaharian-i-have&p=6176877&viewfull=1#post6176877

Do you have an Iberian French as an ancestor.

[Cumansky]

Why some Hungarian have more subsaharian on this test than me?

Jews of Spanish and Portuguese Empires.

[dududud]

This is your test, right?
https://www.theapricity.com/forum/showthread.php?297687-How-much-Subsaharian-i-have&p=6176877&viewfull=1#post6176877

Do you have an Iberian French as an ancestor.

No, dude, read:

"My cousin shares the same ancestors on the side of my maternal grandfather, Henri Sanna, and my maternal grandmother ... she does not get that subsaharian thing. My father no more. Most of my cousins who have ancestors in common with me (close or not), either.

And yes, I know my genealogy very well. On the side of Henri Sanna, they come largely monserrato (in a an isolated village), but not coasts, and my maternal grandmother comes from Courcelles-lès-Lens over the last 500 years with distant alsacians ancestors (non jews).

My father has ancestors comes mainly from Gouy-Saint-André, in the North of France, and from Douai, Flanders, Wallonia, and an ancestor distant from Couhé.

Pre-beta cousin results:"

[dududud]

What about me?

K13

Sub-Saharan 1.16 Pct
Northeast_African 0.18 Pct

K9

West African 1.20 Pct

K9b

Sub-Saharan_African 1.64 Pct

K10

West African 1.20 Pct

K11

West African 1.19 Pct

K12

West African 1.18 Pct

Noise or real?

Judeo-sheiiiit.

[luc2112]

No, dude, read:

"My cousin shares the same ancestors on the side of my maternal grandfather, Henri Sanna, and my maternal grandmother ... she does not get that subsaharian thing. My father no more. Most of my cousins who have ancestors in common with me (close or not), either.

If your ancestors do not mark SSA is noise.

[dududud]

If your ancestors do not mark SSA is noise.

She have the same direct maternal haplogroupe that me, and a direck link to the ancestors of Henri Sanna, my sardinian maternal grandfather.


SHEIIIIIIIIIIIIIIIIIIIIT.

[Red Pill]

And where would the 0,17 Australasian come from...? Commercial genetic tests are unreliable.

[dududud]

And where would the 0,17 Australasian come from...? Commercial genetic tests are unreliable.

From the colony of Australasians in Sardinia and Northern France, of course...

[Leto]

You have French Senegalese Negroid blood! There's 2 million Noirs in France.

Like the French football star Mamadou Sakho
https://tmssl.akamaized.net/images/portrait/originals/47713-1454413058.jpg

Case closed.

[dududud]

You French Senegalese Negoid blood! There's 2 million Noirs in France.

Case closed.

You had millions of Congolese in the 1940s in France. We can check that.

https://upload.wikimedia.org/wikipedia/commons/thumb/d/dc/French_Congo_1959_proposal_%28Flag%29.svg/1280px-French_Congo_1959_proposal_%28Flag%29.svg.png

[Red Pill]

From the colony of Australasians in Sardinia and Northern France, of course...

LOL. If one watches Hollywood movies one could believe that. I watched The Bruce and there were Blacks among the crowd... in a 1300 AD Scottish town!

[Leto]

You had millions of Congolese in the 1940s in France. We can check that.

https://upload.wikimedia.org/wikipedia/commons/thumb/d/dc/French_Congo_1959_proposal_%28Flag%29.svg/1280px-French_Congo_1959_proposal_%28Flag%29.svg.png
Vive l'Afrique!
(I don't speak French, only some German xD)

[Leto]

LOL. If one watches Hollywood movies one could believe that. I watched The Bruce and there were Blacks among the crowd... in a 1300 AD Scottish town!
Well, the BBC claimed the Romans in Britain were blacks too.

[Red Pill]

Well, the BBC claimed the Romans in Britain were blacks too.

Actually The Bruce was an English production, not Hollywood, but you know what I mean... I read a genetic study time ago, which said that Scots have 0% SSA ancestry.

[dududud]

LOL. If one watches Hollywood movies one could believe that. I watched The Bruce and there were Blacks among the crowd... in a 1300 AD Scottish town!

Yes, it's the transformation of the story into a hollywood movie with a sheit influence or big part.

[Leto]

Actually The Bruce was an English production, not Hollywood, but you know what I mean... I read a genetic study time ago, which said that Scots have 0% SSA ancestry.
In Europe only some Southern Italians, some Spaniards and especially Portuguese have a bit of SSA (member Pedro Ruben is 4% black). The rest have literally zero SSA in them.

[Ayetooey]

Noise.

[Lemgrant]

In Europe only some Southern Italians, some Spaniards and especially Portuguese have a bit of SSA (member Pedro Ruben is 4% black). The rest have literally zero SSA in them.

you forgot about Jews

[Red Pill]

In Europe only some Southern Italians, some Spaniards and especially Portuguese have a bit of SSA (member Pedro Ruben is 4% black). The rest have literally zero SSA in them.

Well, if I recall correctly that study said that even French, Swiss, English and Germans have some 0,1%. They explained it with slavery during Roman time. But even if scientific genetic studies are more reliable than commercial tests, there is still space for error IMO.

[Leto]

you forgot about Jews
They aren't European, at least to me.

[dududud]

Well, if I recall correctly that study said that even French, Swiss, English and Germans have some 0,1%. They explained it with slavery during Roman time. But even if scientific genetic studies are more reliable than commercial tests, there is still space for error IMO.

I do not have a subsaharian on myheritage and ftdna. Is this normal? the algorithm works differently?

[dududud]

They aren't European, at least to me.

Ashkenazi jews can be modeled as half european and half non-european. They are half and half since many years... It's like a community of mulatto since 1400.

[Voskos]

Dodecad Africa9?

[Leto]

Ashkenazi jews can be modeled as half european and half non-european. They are half and half since many years... It's like a community of mulatto since 1400.
I know but they are just Jews. And their homeland is in the Near East, not in Europe. That's what they say themselves.

[dududud]

I know but they are just Jews. And their homeland is in the Near East, not in Europe. That's what they say themselves.

It seems to me logical that they identify with what they are, since they are what they are: 50% European and 50% Middle Eastern, for centuries.

So they have an identity of their own. It is therefore normal to identify as Ashkenazi and not only "European" or "Middle Eastern".

[Red Pill]

I do not have a subsaharian on myheritage and ftdna. Is this normal? the algorithm works differently?

The databases used in commercial tests aren't complete. So if they find sequences not present in their database, they match them with the most similar ones they have, so you can get false positives.

[dududud]

The databases used in commercial tests aren't complete. So if they find sequences not present in their database, they match them with the most similar ones they have.

Good explication my friend.

I sent my autosomal (and money, for sureeee) Myheritage to David from Eurogene to tell me whether or not he really detected a sub-Saharan or Asian or other input (which could be something other than Sub-Saharan).

[Pine]

They aren't European, at least to me.

How about now:

Blyyyyyyyyyyaaaaaaaaaaaaaaaaaaaaaaaaaaaaat!



Nu?

[Voskos]

https://cdn.eslgaming.com/play/eslgfx/gfx/logos/teams/9576000/9576729_medium.jpg

[Red Pill]

Good explication my friend.

I sent my autosomal (and money, for sureeee) Myheritage to David from Eurogene to tell me whether or not he really detected a sub-Saharan or Asian or other input (which could be something other than Sub-Saharan).

I dunno buddy, my personal take is that's an industry to suck hard earned $ from ppl, but I could be wrong...

[dududud]

https://cdn.eslgaming.com/play/eslgfx/gfx/logos/teams/9576000/9576729_medium.jpg

https://i.pinimg.com/originals/a4/4f/b6/a44fb68d05ba5c1847b236d851b10417.jpg

[Voskos]

It was a joke... In all seriousness now, sardinians have up to 3% ssa, so you being a quarter , it gives you an idea how much you got. Not more than 1%. For more info:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3080861/

[Lafaur]

If I had 4% SSA could I say the N word? :coffee:

Every latino that I know in the West Coast uses the N without backlash, latinos have the pass by birthright no matter how caucasian they are

This Shoreline Mexican rapper uses the hard r on the reg and he doesn't look very SSA-influenced to me

https://a.wattpad.com/cover/188478822-352-k438016.jpg

[dududud]

It was a joke... In all seriousness now, sardinians have up to 3% ssa, so you being a quarter , it gives you an idea how much you got. Not more than 1%. For more info:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3080861/

To be more precise: It's about the non-"barbagian" -isolated region- of sardinian, not all the region of Sardinia...

https://www.biorxiv.org/node/25894.abstract


We also examined possible sources of African admixture to Sardinia. Prior to our studies,
there have been reports based on the HGDP Sardinians of a minor proportion (0.6% to 2.9%) of
sub-Saharan admixture (Moorjani et al. 2011, Loh et al. 2013) and a multi-way admixture
involving an African source (Hellenthal et al. 2014). In light of the close geographical proximity
of Sardinia and North Africa, as well as the substantial admixture proportion from North Africa in
Southern Europe (Botigue et al. 2013), we tested for admixture using modern North African
reference populations included in the Human Origins Array data (Tunisia, Algeria, Mozabite,
Egypt, and Saharawi), and found the best proxy for African admixture is sub-Saharan African
populations, rather than Mediterranean North African populations, and we inferred the date of
admixture as approximately 1,800-3,000 years ago (assuming 30 years per generation).

The lack of a strong signal of North African autosomal admixture may be due to inadequate
coverage of modern North African diversity in our reference sample. Alternatively, it may be due
to a poor representation of ancestral North Africans. Present-day North African ancestry
reflects large-scale recent gene flow during the Arab expansion (~1,400 years ago (Henn et al.
2012)). The sub-Saharan African admixture observed in the non-Ogliastra samples could be
mediated through an early influx of migrants from North Africa prior to the Arab expansion, for
example during the eras of trade relations and occupations from the Phoenicians,
Carthaginians, and Romans (~700 B.C.- ~200 B.C.; (Dyson and Rowland 2007)).


http://secher.bernard.free.fr/blog/index.php?post%2F2016%2F12%2F13%2FAnalyse-g%C3%A9nomique-de-la-population-Sarde&fbclid=IwAR0CCexJnMOrIJtcZvUOc_md9KyCcbYfpqPND2UKF VOyRxHVyK0HZhAjg7E

It is explained here, I quote:
"The individuals of Cagliari possess about 7% of violet component that one finds in different populations of Southern Europe, the Middle East, the Caucasus and North Africa. ADLER reports that Sardinian populations outside the Ogliastra region have suffered a genetic mix from Eurasia, but also from Sub-Saharan Africa, which seems to be a better proxy than North Africa.This Sub-Saharan mix is estimated between 1 and 4% and goes back between 59 and 109 generations, about 2500 years. "

But this is not what is said in the sourced article, it is precisely written that the percentage is estimated "based on the HGDP Sardinians of a minor proportion (0.6% to 2.9%) of
sub-Saharan admixture" only for the non-ogliastra sample. Neither strictly 3% or between 1 and 4%, but like in the article : 0,6 to 2,9 for the non-ogliastra sample.



In my case, again: My cousin who shares ancestors in common (close, not far) with my maternal grandfather and my maternal grandmother, is 50% Sardinian and 50% of the North of France; she has no subsaharian percentage detected on 23andme and Myheritage. Neither significative subsaharian on Gedmatch.

This remains to be explained.