Overview
J2b-Z43071 is a downstream branch of the J2b-M241 lineage with demographic links spanning the southern Balkans, Aegean islands and coastal western Anatolia. Its early formation period aligns with late Neolithic–Chalcolithic communities that built agricultural villages and maritime hubs across the Adriatic, Ionian and Aegean coasts. These societies exchanged agricultural products, metals and ceramic styles across a broad maritime cultural zone. During the Bronze Age, Z43071 appears within the population structure of Mycenaean Greece, Aegean island polities and western Anatolian coastal centers. The clade diversified into island-specific microbranches, southern Balkan river-valley clusters and coastal Anatolian sublineages. Iron Age and classical populations from the region exhibit downstream J2b signatures consistent with the clade's long-standing presence in maritime and coastal routes connecting the Aegean and southern Balkans.