A breakthrough paleogenomic study published in Nature Ecology & Evolution has identified a unique genetic lineage in 12,000-year-old remains recovered from the Irrawaddy Delta in Myanmar. The research team, led by the International Centre for Paleogenomics, conducted a high-resolution analysis of the skeletal remains, revealing specific genetic markers associated with the metabolism of specialized marine alkaloids and iodine-rich diets found in mangrove habitats.
The study suggests that these early Holocene hunter-gatherers developed resilience to saline-water pathogens and metabolic adaptations for high-sodium environments thousands of years earlier than previously hypothesized. This "ghost lineage" provides a critical missing link in the human colonization of Southeast Asia's coastal fringes, demonstrating that early humans were biologically optimizing for complex deltaic ecosystems immediately following the Last Glacial Maximum.