The Genetics of some fossils from Ancient Ladakh

AI interpretationAI-generated

Ancient Ladakh fossils reveal a Brahmin-Tibetan admixture around 850 BCE.

Researchers studied ten samples from Old Lady Spider Cave in Ladakh, dated to about 1500 years ago. Their DNA shows they were a mix of two groups: one genetically similar to modern North Indian Brahmins, and another from ancient Tibet. This mixing likely happened around 850 BCE, roughly 50 generations before the samples lived. The study sheds light on how populations formed in the Himalayan region, an area whose genetic history is still poorly understood.

• The Ladakh samples date to around 1500 years before present (BP).
• They are admixed between a North Indian Brahmin-like population and an ancient Tibetan population.
• The admixture occurred about 50 generations before the samples, around 850 BCE.

Sample interpretation

Ten individuals from Old Lady Spider Cave in Ladakh were analyzed. Only three had resolvable Y-chromosome lineages: J-PH128, R-FGC50269, and R-Y944, each found once. No mitochondrial DNA data were reported. These limited genetic markers are consistent with the main finding of mixed ancestry, but the small sample size means the Y-chromosome results are preliminary and should be interpreted with caution.

For genealogy enthusiasts

This study shows that ancient Ladakh was a meeting point for North Indian and Tibetan ancestries. For ancestry enthusiasts, it highlights how admixture shaped Himalayan populations and provides a concrete date for one such mixing event, useful for understanding regional genetic history.