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Thread: Ancient genomes reveal complex patterns of population movement, interaction, and repl

  1. #21
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    I canít ignore these two samples from Mangatai Turu, especially one with very high Luxmanda ancestry.
    That individual dates to a period of states formation in regions East(inter-lacustrine region) of her. This reminds me of oral history that says my ancestors moved from Uganda to Eastern Congo(Rutchuru/Goma) and expanded later in Western Rwanda and many staying behind. However, my ancestors left before 1200s.
    This could mean that it was a common occurrence for pastoralists to move west.
    Banyamulenge are living testimony to that, though, we expanded southwest as far as Kasai(South-Central Congo)

    Oral accounts say that Bachwezi(founders of Bunyoro-kitara) moved west when Luos took over Bunyoro.
    Our observation of PN-related ancestry in eastern Congo in the late Iron Age, as well as the lack of ancestry related to Bantu speakers there at that time, is, so far, an isolated find that calls for further investigations about the spread of PN-related ancestry in the west of the eastern African core region.
    Looking forward to seeing someone work on this. Since we even have a present day cushitic admixed population leaving there(pastoralists Hema).

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  3. #22
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    https://ai-journal.com/articles/abst....5334/ai.0412/
    Our first archaeological evidence of these transformations comes from the site of Ntusi in southwestern Uganda, which was occupied from the eleventh to the fifteenth centuries (Fig. 2) .z The assemblages of animal bones recovered from Ntusi are dominated by cattle, which constitute as much as 90 per cent of all the animals consumed at the site.Very large proportions of these animals, presumably mostly bulls, were being slaughtered while they were still immature, a pattern of herd manage* ment consistent with large stock numbers. Archaeological survey revealed a series of smaller sites, most of which are cattle enclosures, suggesting that Ntusi was a small chiefdom that sustained political domination over outlying cattle-keeping settlements up to 15 km from the centre. Besides the heavy emphasis on cattle,
    An exclusive class of pastoralists emerged in several kingdoms, including Rwanda, Nkore and Karagwe (Fig. 4 ) .These pastoralists were distinct from other East African pastoral* ists, such as the Maasai, not only because of their association with states but also for their almost complete concentration on cattle. Goats were totally shunned and only one or two sheep would be kept with the herd. The pastoralists separated them* selves from all aspects of agriculture and preferred to consume only milk, meat and occasionally blood. In the event that agri* cultural produce (other than beer) was eaten, a 24-hour fast was observed before resuming milk consumption.
    Could this mean a different expansion?

    The above quotes might give a glimpse to what the Iron Age expansion of pastoralists West into Uganda looked like.
    Last edited by Espoir; 06-13-2020 at 10:45 AM.

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  5. #23
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    Fantastic paper. New wealth of info on ancient African dna. Still limited to making any sweeping statements but at least we are progressing with more numbers.

    Interesting stuffs: Various E clades in forager groups in east Africa including mota: E2, E-M329, and various CT related haplogroups(which could just be more E clades). Add to this the E2 of the earlier East Africa pastoralists and the E-M215 of later waves of East African Pastoralists, and you have a maze of diffrent clades of E haplogroups.

    We certainly need Paleolithic and pre-neolithic east african dna.

    It is a shame the DNA extraction of early West African pastoralists and Kadruka(amongst the earliest pastorlaists in Africa and part of the Nubian pastoralist tradition ) either was not successful or wasnt reported here
    Last edited by piye; 06-13-2020 at 05:08 PM.

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    I find it in unfortunate that Levant and IBM were not differentiated in the Supp. Its good and interested though to see strong Northern ancestry in Nilo Saharans, including the Mursi who are traditionally lacking in West Eurasian ancestry.

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    I look forward to modelling them in Vahaduo since I highly doubt Levant Chalcolithic makes any sense as a proxy for the West Eurasian ancestry in these pastoralists.
    Ελευθερία ή θάνατος.

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  11. #26
    Quote Originally Posted by Michalis Moriopoulos View Post
    I look forward to modelling them in Vahaduo since I highly doubt Levant Chalcolithic makes any sense as a proxy for the West Eurasian ancestry in these pastoralists.
    Any idea when they'll be available?

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    Why there's no E-V32 in those old east africans ? most of them are E-M293 , does that means E-V32 is result of a later migration ?

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    Quote Originally Posted by Ramses View Post
    Why there's no E-V32 in those old east africans ? most of them are E-M293 , does that means E-V32 is result of a later migration ?
    I8874, from southwestern Kenya, ~1300 BC, one of the oldest of the main Pastoral Neolithic cluster, is E-CTS2294(xY17859) (so in the main E-V32 line, outside of the modern Somali subclade). Also I8904, from northern Kenya, in a supposedly Pastoral Iron Age context but undated and genetically grouped with Pastoral Neolithic, is probably E-V12, not excluding V32 (low coverage though).

    So no, E-V32 isn't missing in action.

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    Quote Originally Posted by Ramses View Post
    Why there's no E-V32 in those old east africans ? most of them are E-M293 , does that means E-V32 is result of a later migration ?
    E-V32 was found in one Kenyan Pastoral Neolithic sample dated to 3 kya in the previous paper by Prendergast. Founder effect among different groups of pastoral nomads means different Y-DNA lineages can easily become dominant in otherwise closely related groups. We still see this in the Horn today.

    EDIT: Beaten to it

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  17. #30
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    Quote Originally Posted by ThaYamamoto View Post
    Any idea when they'll be available?
    The samples are available now by request.

    https://twitter.com/stschiff/status/...617806854?s=19

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