'ghost population' of ancient humans in Africa

bicicleur 2

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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...3vhGIc_2cpwVSW4kFkoNZz4qZD8l0Fkcgbgfk7yRDU2aI

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
 
This story is so fascinating ... every time we have more and more subtleties.
 
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...3vhGIc_2cpwVSW4kFkoNZz4qZD8l0Fkcgbgfk7yRDU2aI

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?
 
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.
 

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