View Full Version : Philippine Ayta have Highest Denisovan DNA Ancestry in the World

08-13-2021, 02:40 AM
https://www.cell.com/current-biology/fulltext/S0960-9822(21)00977-5?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com %2Fretrieve%2Fpii%2FS0960982221009775%3Fshowall%3D true


08-14-2021, 04:03 AM
From this paper:
Here, we have presented evidence for the possible presence of diverse Islander Denisovan populations, who differentially admixed with incoming Australasians across multiple locations and at various points in time. Consequently, this led to variable levels of Denisovan ancestry in the genomes of Philippine Negritos and Papuans. In ISEA, Philippine Negritos later admixed with East Asian migrants who possess little Denisovan ancestry, which subsequently diluted their archaic ancestry. Some groups though, such as the Ayta Magbukon, minimally admixed with the more recent incoming migrants. For this reason, the Ayta Magbukon retained most of their inherited archaic tracts and left them with the highest level of Denisovan ancestry in the world.

It seems that Southeast Asia is the last refuge for the Denisovans, and Europe is the last refuge for the Neanderthals, so it is possible to roughly speculate on the expansion route of Homo sapiens after leaving Africa.

08-14-2021, 04:07 AM
An interesting map in the paper shows the ice age land bridge connecting the Philippines.