Dodecad Project confirms North African ancestry into Portuguese...

[luis77]

For many years people had wrong ideas about Moorish influence in Portugal. But recently, admixture and haplogroup analysis (Y-Dna and mtDna) on large samples both prove that Moorish admixture is real in some Iberian ethnic groups like Portuguese.


"North African" admixture in Portuguese:

1) Dodecad : about 9% with a few individuals over 10%!

https://spreadsheets.google.com/spreadsheet/ccc?key=0ArAJcY18g2GadDUyeEtjNnBmY09EbnowN3M3UWRyN nc&hl=en_US&authkey=COCa89AJ#gid=0

North African/Berber: 6.8
East African:1.2
Neo African:0.7

2) Eurogenes : 13-14%

http://bga101.blogspot.com/2011/04/neolithic-belt-and-surrounds-at-k8.html

3) Dna Tribes : 13-14%

http://en.wikipedia.org/wiki/DNA_Tribes#Sample_Results_.28August_2011.29.5B11.5 D


These results confirm what was reported by recent haplogroup studies that analysed large samples of Portuguese:

1) North African Y-Dna in Portugal: 47/659 > 7%

"Moors and Saracens in Europe: estimating the medieval North African male legacy in southern Europe", Capelli 2009

http://www.nature.com/ejhg/journal/v17/n6/fig_tab/ejhg2008258t1.html#figure-title

2) North African mtDna in Portugal (L, U6 Hgs): 55/594 >9%

"Mitochondrial DNA Variation of Modern Tuscans Supports the Near Eastern Origin of Etruscans", Achilli 2007

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1852723/table/TB2/

[Knovas]

¿Wich is the purpose of the post? It's perfectly known that there is a little North African influence between Iberians. Pure Europeans almost doesn't exist, except for the Basques and some Baltics.

Non European admixture in Iberians is not higher than the one you can find between Dutch, French, English, Germans, etc. The total European score is more or less the same.

¿So what?

[Wilhelm2]

Well, the y-dna E-M81 is also found in France at 3%, (and there was a study with Andalusians showing less E-M81 than French), and mtDNA U6 has also been found in France (Brittany, Limousin, etc). As for mtDNA L, the study of Rhouda et al. fins 0% in a sample of 686 spaniards. And García et al. finds mtDNA L in Europe even in Denmark :

Hérault (Languedoc) 2.4 %
Rhône (Lyonnais) 4.4 %
Vendée and Vienne (Poitou) 0.8 %
Calvados and Seine-Maritime (Normandy) 1.8 %
Somme (Picardie) 1.3 %
France Miscellanea 0.6 %
Scotland 0.1 %
England 0.7 %
Great Britain 0.9 %
North-Germany and Denmark 0.7 %

As for the North-African there are other runs from Eurogenes with much lower north-african, anyways it doesn't make them less european, since all europeans have non-european admixture, for example the rest of Europe has more West-Asian than Iberia, or more Southwest-Asia, or more East-Asian, etc. The european scores are the same between Iberia and the rest of Europe, or even higher, see this map of European admixture from Dodecad :

http://desmond.imageshack.us/Himg607/scaled.php?server=607&filename=euroadmix.png&res=medium

[Cambrius (The Red)]

For many years people had wrong ideas about Moorish influence in Portugal. But recently, admixture and haplogroup analysis (Y-Dna and mtDna) on large samples both prove that Moorish admixture is real in some Iberian ethnic groups like Portuguese.


"North African" admixture in Portuguese:

1) Dodecad : about 9% with a few individuals over 10%!

https://spreadsheets.google.com/spreadsheet/ccc?key=0ArAJcY18g2GadDUyeEtjNnBmY09EbnowN3M3UWRyN nc&hl=en_US&authkey=COCa89AJ#gid=0

North African/Berber: 6.8
East African:1.2
Neo African:0.7

2) Eurogenes : 13-14%

http://bga101.blogspot.com/2011/04/neolithic-belt-and-surrounds-at-k8.html

3) Dna Tribes : 13-14%

http://en.wikipedia.org/wiki/DNA_Tribes#Sample_Results_.28August_2011.29.5B11.5 D


These results confirm what was reported by recent haplogroup studies that analysed large samples of Portuguese:

1) North African Y-Dna in Portugal: 47/659 > 7%

"Moors and Saracens in Europe: estimating the medieval North African male legacy in southern Europe", Capelli 2009

http://www.nature.com/ejhg/journal/v17/n6/fig_tab/ejhg2008258t1.html#figure-title

2) North African mtDna in Portugal (L, U6 Hgs): 55/594 >9%

"Mitochondrial DNA Variation of Modern Tuscans Supports the Near Eastern Origin of Etruscans", Achilli 2007

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1852723/table/TB2/

What Dodecad REALLY confirmed is that the Portuguese are very similar to other Western European populations, with rather high (for southern Europe) north European and north Atlantic genetic affinities. By the way, readings of 2% or lower are considered as genetic "noise" or "static". The fact of the matter is that any North African admixture is quite minimal and very much dominated by total European scores of between 85 and 87%. It's time to move on.

p.s. the figures you attributed to Eurogenes are incorrect. According to the latest Eurogenes run, total African for Portugal is ~ 2.7%. Also, since when is DNA Tribes a reliable source for anything genetic?:useless: Please, let's stop the charlatan games.

[Goga]

http://desmond.imageshack.us/Himg607/scaled.php?server=607&filename=euroadmix.png&res=mediumThat's Right! If you do consider R1b, R1a, I and N as European.

According to some people on this forum R1b is not native to Europe and N isn't European either, more likely Euroasian...

[sparkey]

That's Right! If you do consider R1b, R1a, I and N as European.

According to some people on this forum R1b is not native to Europe and N isn't European either, more likely Euroasian...

It's important not to let terms like "European" and "North African" in autosomal studies confuse you. "European" admixture doesn't mean Paleolithic European, or that the DNA that represents that population originated in Europe. If that was the case, there's no way we'd be seeing Tunisia as 36% European. It's just a comparison of modern populations and how much they've apparently admixed over time with one another. So a more "European" population isn't necessarily more Cro-Magnon, they just have less admixture with those who aren't marked as "European."

[Goga]

It's important not to let terms like "European" and "North African" in autosomal studies confuse you. "European" admixture doesn't mean Paleolithic European, or that the DNA that represents that population originated in Europe. If that was the case, there's no way we'd be seeing Tunisia as 36% European. It's just a comparison of modern populations and how much they've apparently admixed over time with one another. So a more "European" population isn't necessarily more Cro-Magnon, they just have less admixture with those who aren't marked as "European."
Yes, sometimes these terms confuse me very much.

They do consider West Europe, East Europe and the Mediterranean as 1 group. While there are huge differences between these groups. West Europe has almost no R1a, while East Europe has almost no R1b. Basques and Russians are absolutely not the same, almost like the affinity between Africans and Chinese. West Asia is closer to East Europe that West Europe is. It would be less confusing if they used colours or numbers or something.

Btw, if it would be a West Asian CENTRIC map, it would be in places like Geogia, Armenia, Kurdistan etc. almost 100% too! I don't spent too much time - attention - on such maps...

[Wilhelm]

Yes, sometimes these terms confuse me very much.

They do consider West Europe, East Europe and the Mediterranean as 1 group. While there are huge differences between these groups. West Europe has almost no R1a, while East Europe has almost no R1b. Basques and Russians are absolutely not the same, almost like the affinity between Africans and Chinese. West Asia is closer to East Europe that West Europe is. It would be less confusing if they used colours or numbers or something.

Btw, if it would be a West Asian CENTRIC map, it would be in places like Geogia, Armenia, Kurdistan etc. almost 100% too! I don't spent too much time - attention - on such maps...
That's completely wrong. Autosomally East and West Europe are very close, there is an overlapp.