Overview
R1a-Y7802 is a large downstream lineage under R1a-Y7 and forms an important paternal layer across northern India, Pakistan and the Himalayan regions. The lineage emerged during the early historic period, a time characterized by rapid population movement, state formation and the expansion of Indo-Aryan-speaking communities. Its downstream clusters show strong founder effects and localization within specific caste, clan and regional groups.
Y7802 is also widespread among Himalayan populations, where it often coexists with Y9 and Y8811 as part of long-term settlement patterns. Its deep presence in these regions demonstrates enduring continuity of paternal lineages throughout historical and medieval periods.
Geographic distribution
Y7802 is common in Punjab, Himachal Pradesh, Nepal, Jammu and northern Pakistan. It appears at moderate frequencies in Uttar Pradesh and Uttarakhand.
Ancient DNA
- Early historic burials in Punjab show upstream Y7-like patterns consistent with Y7802 formation.
- Medieval Himalayan contexts include several Y7802-bearing individuals.
- Iron Age highland communities reveal ancestral links to Y7802 diversification.
Phylogeny & subclades
Y7802 has multiple subbranches concentrated in Indian and Himalayan populations.
- Himalayan microclusters
- Northern Indo-Gangetic branches
Notes & context
Y7802 is crucial for understanding medieval demographic expansions in the Himalayan arc and Indo-Gangetic plain.
References & external links