Sub-Saharan hunter-gatherers carry 2% archaic DNA from hominins split 700kya that admixed 35kya ago.
Go to the source page

Biaka Pygmies and San show extremely strong archaic admixture evidence (P<10^-4). Mandenka agriculturalists show no archaic admixture (P>0.05). Three-population model rejects no-admixture null (P=0.0493). Archaic split times 125kya to 1.5Mya with admixture under 70kya. Admixture proportion peaks at 2% for old event and 0.5% for recent. Locus 4qMB179 has 31kb Biaka haplotype diverged 0.3% from other Africans with split 1.25Mya and admixture 37kya. Loci 13qMB107, 4qMB179, 18qMB60 strongest candidates with P<0.001. Divergent haplotypes highest in Pygmy groups (3.6% at 4qMB179). San carry 13qMB107 at 11.9%. Mbuti Pygmies carry all three candidate variants despite isolation. Archaic haplotypes bounded by recombination hotspots indicating longer original blocks. Fossil record supports archaic-modern coexistence in Africa until 35kya. Central Africa likely introgression homeland with poor fossil record. Multiple admixture events inferred from multimodal likelihood. African introgression mirrors Neandertal in Eurasians and Denisovan in Melanesians. Hunter-gatherers reservoir for archaic signals absent in whole-genome agriculturalist data.

Negroes Genetics Evolution Hominids Science

Comments

Be the first to comment!

Join the discussion

Please confirm that you are not a robot.