A groundbreaking paleogenomic study published in Nature Genetics has unveiled a previously unknown genetic lineage in the Brahmani River basin of eastern India. By analyzing the remains of hunter-gatherers dating back to the late Pleistocene, researchers identified a highly specialized genetic adaptation providing resistance to endemic fluvial toxins that affect blood coagulation. This finding suggests that ancient populations in the region had already developed sophisticated biological defenses against unique riverine pathogens and biochemical stressors long before the advent of agriculture.
The study, led by an international team of geneticists and anthropologists, utilizes advanced high-coverage sequencing to map the divergence of this population. The data indicates a significant "ghost lineage" that remained isolated for millennia, contributing specific regulatory genes to modern communities in Odisha and Jharkhand. Dr. Ananya Sarangi, the lead researcher, noted that this adaptation is one of the earliest known examples of human genetic selection specifically linked to a localized fluvial environment in South Asia.