Decline in Y Chromosome Diversity at Neolithic's End

Exploring Social Change's Impact on Genetic Variation

The emergence of patrilineal social systems during the Neolithic period may explain a notable decline in Y chromosome diversity globally around 3,000 to 5,000 years ago. In a study published in Nature Communications¹, researchers from CNRS, MNHN, and Université Paris Cité propose that social reorganization, rather than conflict-related mortality, drove t…