Overview
J1-FGC8793 is a downstream lineage of the highland-oriented J1-Z1828 complex, with early formation tied to upland agro-pastoral populations of the South Caucasus, eastern Anatolia and the northern Zagros. These groups practiced seasonal mountain pastoralism and established early fortified hilltop settlements, forming part of the cultural substrates that preceded and contributed to the Kura-Araxes expansion.
During the Bronze and Iron Ages, FGC8793-bearing populations remained concentrated in mountainous zones where rugged geography and ecological isolation promoted strong internal continuity. The lineage's downstream structure reveals microbranches often confined to specific valleys, ridgelines or plateau zones, indicating prolonged demographic stability in these highland societies.
Geographic distribution
Most concentrated in Armenia, Georgia, eastern Turkey and northwest Iran; moderate presence in North Caucasus; minimal in lowland Mesopotamia.
Ancient DNA
- Kura-Araxes individuals carry upstream J1-Z1828 lineages compatible with early FGC8793.
- Iron Age Armenian plateau burials show continuity with FGC8793-oriented derivatives.
- Medieval Armenian highland samples preserve multiple downstream subbranches.
Phylogeny & subclades
A highland-rooted J1-Z1828 branch defined by environmentally isolated microclades linked to ancient agro-pastoral systems.
- FGC8793*
- Armenian Highland branches
- Eastern Anatolia upland segments
Notes & context
A lineage reflecting multi-millennial demographic continuity in the highlands of the South Caucasus and northern Zagros.
References & external links