Near Oceania Populations Carry 25 Times More Denisovan DNA, Revealing 3 Ancient Lineages
Updated
Updated · studyfinds.com · Jun 12
Near Oceania Populations Carry 25 Times More Denisovan DNA, Revealing 3 Ancient Lineages
1 articles · Updated · studyfinds.com · Jun 12
Summary
A Science study of 177 genomes from 12 Near Oceanic populations found the region carries the highest known levels of archaic human DNA, with the Sepik of New Guinea holding 25 times more Denisovan DNA than East Asians.
Those genomes also contained roughly 2.5 times more archaic sequence than Europeans, and researchers traced the Denisovan contribution to three distinct Denisovan-like groups that mixed with Near Oceania’s ancestors over tens of thousands of years.
Long isolation after settlement about 42,000 years ago, plus severe bottlenecks between roughly 10,000 and 20,000 years ago in some groups, helped make several communities among the most genetically distinct on Earth.
More than 505 million previously undocumented units of archaic sequence were identified, and lab tests on 22,000 variants found 3,127 that altered gene activity, many in immune pathways involving JAK1, GBP2 and OAS1.
The authors say Near Oceania’s underrepresentation in major biobanks has obscured these patterns, and that further work is needed to pin down when the introgression events occurred and whether the variants affect present-day disease risk.
Does the ancient DNA that boosts immunity in Oceanians carry hidden risks for modern autoimmune diseases?
Three distinct Denisovan groups left their DNA in modern humans. Who were they, and what does this reveal about ancient human migrations?
2026 Breakthrough: Near Oceanians Carry Highest Denisovan DNA—Shaping Immunity, Skeletal Traits, and Health
Overview
A groundbreaking Yale-led study published in June 2026 revealed that people in Near Oceania have a unique and significant Denisovan genetic heritage. Through comprehensive genomic analysis, researchers discovered that ancient interbreeding events led to multiple Denisovan DNA segments being incorporated into the genomes of these populations. Importantly, this Denisovan genetic material is not just a relic of the past—it actively shapes human biology today by turning genes on and off, especially in areas related to immunity and skeletal development. This discovery fundamentally changes our understanding of how ancient hominins continue to influence modern human health and evolution.