Eupedia Forums
Site NavigationEupedia Top > Eupedia Forum & Japan Forum
Results 1 to 4 of 4

Thread: 'ghost population' of ancient humans in Africa

  1. #1
    Advisor Achievements:
    Three FriendsVeteran50000 Experience Points
    bicicleur's Avatar
    Join Date
    27-01-13
    Location
    Zwevegem, Belgium
    Posts
    5,590
    Points
    54,027
    Level
    71
    Points: 54,027, Level: 71
    Level completed: 99%, Points required for next Level: 23
    Overall activity: 23.0%


    Country: Belgium - Flanders



    2 members found this post helpful.

    'ghost population' of ancient humans in Africa

    While introgression from Neanderthals and Denisovans has been documented in modern humans outside Africa, the contribution of archaic hominins to the genetic variation of present-day Africans remains poorly understood. We provide complementary lines of evidence for archaic introgression into four West African populations. Our analyses of site frequency spectra indicate that these populations derive 2 to 19% of their genetic ancestry from an archaic population that diverged before the split of Neanderthals and modern humans. Using a method that can identify segments of archaic ancestry without the need for reference archaic genomes, we built genome-wide maps of archaic ancestry in the Yoruba and the Mende populations. Analyses of these maps reveal segments of archaic ancestry at high frequency in these populations that represent potential targets of adaptive introgression. Our results reveal the substantial contribution of archaic ancestry in shaping the gene pool of present-day West African populations.

    https://www.theguardian.com/science/...cgbgfk7yRDU2aI

    https://advances.sciencemag.org/content/6/7/eaax5097

    not only west-africa, they were all over africa and they survived till not so long ago

  2. #2
    Regular Member Achievements:
    1 year registered5000 Experience Points

    Join Date
    09-06-18
    Posts
    202
    Points
    6,084
    Level
    23
    Points: 6,084, Level: 23
    Level completed: 7%, Points required for next Level: 466
    Overall activity: 19.0%


    Ethnic group
    Catalan
    Country: Spain - Catalonia



    This story is so fascinating ... every time we have more and more subtleties.

  3. #3
    Banned Achievements:
    1 year registered

    Join Date
    31-03-18
    Posts
    365

    Y-DNA haplogroup
    I2a2a(m223)(L801)

    Country: Albania



    Quote Originally Posted by bicicleur View Post
    While introgression from Neanderthals and Denisovans has been documented in modern humans outside Africa, the contribution of archaic hominins to the genetic variation of present-day Africans remains poorly understood. We provide complementary lines of evidence for archaic introgression into four West African populations. Our analyses of site frequency spectra indicate that these populations derive 2 to 19% of their genetic ancestry from an archaic population that diverged before the split of Neanderthals and modern humans. Using a method that can identify segments of archaic ancestry without the need for reference archaic genomes, we built genome-wide maps of archaic ancestry in the Yoruba and the Mende populations. Analyses of these maps reveal segments of archaic ancestry at high frequency in these populations that represent potential targets of adaptive introgression. Our results reveal the substantial contribution of archaic ancestry in shaping the gene pool of present-day West African populations.

    https://www.theguardian.com/science/...cgbgfk7yRDU2aI

    https://advances.sciencemag.org/content/6/7/eaax5097

    not only west-africa, they were all over africa and they survived till not so long ago
    so blacks are mixed with ghosts? it it basically what it says?

  4. #4
    Advisor Achievements:
    Three FriendsVeteran50000 Experience Points
    bicicleur's Avatar
    Join Date
    27-01-13
    Location
    Zwevegem, Belgium
    Posts
    5,590
    Points
    54,027
    Level
    71
    Points: 54,027, Level: 71
    Level completed: 99%, Points required for next Level: 23
    Overall activity: 23.0%


    Country: Belgium - Flanders



    Quote Originally Posted by Tutkun Arnaut View Post
    so blacks are mixed with ghosts? it it basically what it says?
    Africans are, indeed.
    And Denisovan is a ghost, because if it weren't for DNA nobody would ever have found out about their existence.
    It looks like many such ghosts wandered around in Africa.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •