Scientists discover genomic ancestry of Stone Age North Africans from Morocco

[IronSide]

We can exclude Northwest Africa as the source of Basal Eurasians, but not necessarily Egypt or even the Horn of Africa, which have the highest diversity of E1b1b clades today, including very old ones not found anywhere else.

I don't think Basal Eurasians are exclusively associated with E1b1b after all Iran Neolithic and hunter-gatherers had higher levels of Basal but no E1b1b.

 

[Maciamo]

I don't think Basal Eurasians are exclusively associated with E1b1b after all Iran Neolithic and hunter-gatherers had higher levels of Basal but no E1b1b.

I didn't say that. Anyway the paternal side often hides a variety of maternal lineages. Basal Eurasian surely includes:

- N1a : most common in the Arabian peninsula and Mesopotamia. Very common among Early European Neolithic farmers and therefore associated with Y-haplogroup G2a.

- N1b : peaking in the Middle East and found among the Natufians.

- N2a : a rare clade found in the Middle East and Europe.

- W (aka mtDNA N2b) : quite common in the Caucasus, Iran and Mesopotamia, probably more linked to Y-haplogroup J1 and J2.

- X : closely linked to Y-haplogroup G2a, both peaking in Anatolia and the Caucasus.

 

[IronSide]

In Lazaridis, Natufians didn't have Yoruba, Mbuti, Ju-Huan-North, or Mota individual from East Africa, so it seems Natufians didn't share anything with Africa except the Y-haplogroup E, which should have originated in Africa because of basal complexity of its subclades, and it should have brought some admixture with it to the Levant, Mota also carried E.

But Lazaridis didn't test for Hadza? you can see Natufians, Levant_N, and Anatolia_N also carry Hadza ancestry, it looks like real admixture:

the Hadza do have a strange position in this PCA.

 

[Angela]

A little late, but Razib Khan opines:
https://www.gnxp.com/WordPress/2018...-roots/?utm_source=dlvr.it&utm_medium=twitter

He doesn't get into the ydna discussion.

 

[Alyan]

Much of the SSA in the samples is surely maternal and not paternal.

 

[FIREYWOTAN]

Thank you for sharing this imformation. There's always so many different ideas but he sources that are available continues to expand. Open Access is more than a word it's impact continues to add creditibility to the shifting of notions and ideas. This article helps to demonstarte the pool of light no matter how dark it may have started.

 

[ratchet_fan]

Here's a very interesting bit from the Supplement:
"North Africa is a strong candidate for the place having kept Basal Eurasians because it is well connected to Eurasia. From this point of view, the Upper Paleolithic individuals from Taforalt are likely candidates as being direct descendants of, or closely derived from, the Basal Eurasian population."

"Table S16. Y-haplogroup assignment for six Taforalt males. All individuals could be assigned to haplogroup E1b1b, and five of them more 1274 specifically to E1b1b1a1 (M-78)."

[/IMG]

Guess my theory of y E being related to basal Eurasian has some support.

 

[ratchet_fan]

Natufians and Levant PPNB are E-L539 and E-Z830, these Iberomaurisians are E-M78, derived from E-L539, but they probably went extinct because they are 14.5 ka old, while TMRCA of E-L539 is only 13.4 ka.
And indeed, the 7.3 ka Morrocans in the Fregal 2017 study are on the E-M183 branch, the same as the pre-Columbian Guanche on the Canary Islands. This branch is not derived from E-L539.
A lot of travelling and replacements by different E1b1b1 subclades must have gone on.
These replacements could also explain the decrease in SSA.

Was the replacement internal within North Africa or from the east or south?

 

[ratchet_fan]

also note that untill 30 ka Northern African west of the Nile was inhabited by Aterians, who are derived from the Irhoud samples, 315 ka.
those Aterians went extinct 30 ka when the Sahara expanded ahead of LGM.
the Iberomaurisians, and probably also some SSA tribes entered and filled up an empty territory.

Still confused on what Iberomasurians. Aren't they a mix of SSA and something basal?

So the only argument is geography?

I doubt it.
Yes, I stick with the theory of BA coming from Gujarat, India or the Indus delta into SW Asia during LGM, along with HG G and H2.

Do you still believe this?

I haven't heard yet about that part South African, part Eurasian North African individual.

But I agree with you. Probably most DNA radiated out of the Levant into Africa, but sometimes some DNA must have come the other way.
There is even some Y-DNA that seems to have come out of Africa after LGM but in precolonial times :
https://www.yfull.com/tree/A-M13/
https://www.yfull.com/tree/A-Y37658/
Eurasia
Haplogroup A has been observed as A1 in European men in England. As A3b2, it has been observed with low frequency in Asia Minor, the Middle East, and some Mediterranean islands, among Aegean Turks, Sardinians, Palestinians, Jordanians, Yemenites, and Omanis. Without testing for any subclade, haplogroup A has been observed in a sample of Greeks from Mitilini on the Aegean island of Lesvos[26] and in samples of Portuguese from southern Portugal, central Portugal, and Madeira.[27] The authors of one study have reported finding what appears to be haplogroup A in 3.1% (2/65) of a sample of Cypriots,[28] though they have not definitively excluded the possibility that either of these individuals may belong to haplogroup B or haplogroup C.

This could be recent though no?

 

[Salento]

TAF09 TAF010 TAF011 TAF012 TAF013 TAF014 TAF015

Dodecad K12b and Dodecad Globe 13 coordinates

TAF009_Dod_K12b,0.00,3.54,60.38,2.05,0.00,0.00,2.48,18.95,8.83,0.00,0.00,3.78
TAF010_Dod_K12b,0.00,0.55,63.90,3.27,0.00,0.17,1.39,18.70,5.98,0.00,0.00,6.05
TAF011_Dod_K12b,0.00,1.28,64.11,2.45,0.00,0.07,0.70,18.22,5.74,0.18,0.00,7.24
TAF012_Dod_K12b,0.00,1.79,63.81,0.80,0.44,0.00,3.27,16.18,5.76,0.59,0.00,7.35
TAF013_Dod_K12b,0.00,1.07,61.84,2.72,0.00,0.02,1.89,18.58,6.99,0.00,0.00,6.89
TAF014_Dod_K12b,0.00,0.74,62.76,2.95,0.00,0.00,2.12,18.14,5.34,0.00,0.00,7.95
TAF015_Dod_K12b,0.00,0.00,62.82,1.87,0.00,0.90,0.00,15.76,6.67,3.45,0.00,8.52

TAF009_Dod_Globe13,3.36,0.73,9.60,0.00,33.75,1.10,21.08,0.01,0.65,0.00,0.00,3.82,25.90
TAF010_Dod_Globe13,0.33,0.38,11.52,0.00,35.15,2.09,18.07,0.89,0.52,0.00,0.00,3.78,27.26
TAF011_Dod_Globe13,1.07,0.72,13.03,0.00,35.94,1.51,17.38,1.16,0.47,0.00,0.00,2.00,26.73
TAF012_Dod_Globe13,3.46,0.76,12.00,0.00,34.31,0.00,20.31,1.79,0.00,0.00,0.00,1.89,25.48
TAF013_Dod_Globe13,0.32,1.18,12.17,0.00,35.23,1.20,17.84,1.47,0.42,0.00,0.00,3.25,26.93
TAF014_Dod_Globe13,0.69,1.47,12.77,0.00,33.73,1.45,18.36,1.22,0.50,0.00,0.00,2.56,27.25
TAF015_Dod_Globe13,0.79,0.12,12.92,0.00,35.18,4.03,15.06,3.08,0.00,0.00,0.97,2.45,25.39