Why the SEA3K Genomic Dataset Matters for Genealogists In June 2025, scientists introduced the SEA3K genomic dataset , a groundbreaking Southeast Asian genomic atlas published in Nature . Until now, fewer than 200 indigenous genomes from mainland Southeast Asia have been represented in international databases. This new dataset includes over 3,000 sequenced genomes from six countries, covering five language families and 30 ethnic groups. This initiative provides unprecedented
