The island genomes the big databases missed: Polynesian DNA holds protective secrets found nowhere else

The world's great genetic databases are built mostly from European ancestry — which means discoveries hiding in other peoples' DNA stay hidden. A study programme working with more than 1,000 participants in French Polynesia, alongside clinicians and community leaders across the Pacific, is showing what has been missed. Two papers — one on the cover of Science, one in Nature Communications — find that Polynesians carry 'founder effects' at least ten times stronger than Finland's, genetics' textbook example: because each voyaging canoe carried only a small founding group, gene variants that are vanishingly rare elsewhere became common enough in Polynesia to reveal what they do. Among them are variants that appear to protect against disease, and at least one promising lead for a future drug target. The genomes also trace settlement itself, suggesting Hawai'i and Rapa Nui — some 7,000 km apart — were likely settled by the same voyagers out of Mangareva. It is ancestry, written carefully enough to read.

SDG 9 · Industry, innovation and infrastructure — Mechanism: tech innovation