Basal Eurasian discussion

[Riverman]

I have some doubts about the phylogenetic position of ANA. Especially E1b1b is deeply nested in the diversity of E2, E1a, and E1b1a. In this situation, could the following three situations be considered?

1. ANA is a mixture of an East/West African related lineage and an unknown para-Eurasian lineage.

2. Some ANA-related populations contributed to East/West Africans.

3. Some lineages like A00 indicates a more ancient layer in West Africans.

I would venture to say mt-L3* and y-hg CT* formed in East Africa. The OOA group moved out, developing/retaining mt-L3m and L3n and y-hg CF*, pre-D1'2. Those that stay behind retain various other mt-L3 and y-hg pre-E and D0. This group later spreads within Africa giving arise to a large portion of the ancestry of extant East & West Africans, as well as ANA. Upon superficial examination East/West/North African ancestries don't seem to attract much to each other, but in test qpgraph runs, if you put a deep branch into each of them (South -> East, Deep A00 -> West, Aterian? -> ANA), you can flesh out a 'y-hg E' associated autosomal signature.

It is pretty obvious that we deal with different Basal African and Archaic African branches which form layers above each other and the ANA-like E-dominated group coming in later on top. Now the question is from where, and this should be fairly close to Basal Eurasian/the split from Eurasians plus more removed from those older layers, with which they didn't mix before the ANA - Basal Eurasian split.
Therefore one would have to prove or disprove who lived in say East Africa, because West Africa was settled later by the E-people anyway, before the supposed split. Was it that ancestral population, or a separate Basal African branch. The current sampling doesn't allow that, because its too shallow in time. Its however clear that the E-people spread their earlier than in West Africa and we have the separate Nilotic branches which being dominated by haplogroup A and B, not E:
https://en.wikipedia.org/wiki/Nilotic_peoples#Y_DNA

With E1b1b being mainly spread with Afro-Asiatic people, which origin in East Africa, North East Africa or West Asia is also a matter of debate.

The Hadza too being dominated by haplogroup B: https://en.wikipedia.org/wiki/Hadza_peop...ic_history

Therefore in Central-East Africa, all non-Afro-Asiatic and likely older, deeper rooted people (Pygmy, Nilotes, Hadza etc.) are dominated by haplogroup A and B.

The Mota sample in itself is fairly young and no real evidence for any sort of deeply rooted presence of E in East Africa.

That doesn't mean there wasn't one, but the current evidence is insufficient to directly prove it.