GLOBETROTTER

GLOBETROTTER infers, dates, and characterizes human admixture events over approximately the past 4,500 years using modern genetic data and statistical analysis.

Key Features:

• Genomic structure analysis: Exploits the genomic structure of admixed populations to infer sources and mixture signals.
• Temporal resolution: Dates admixture events at fine temporal resolution across approximately the past 4,500 years.
• Global admixture atlas: Constructs a worldwide atlas of human admixture history using genetic data alone.
• Event characterization: Identifies and characterizes admixture events associated with historical phenomena such as the Mongol empire expansion, the Arab slave trade, the Bantu expansion, migrations in Eastern Europe during the first millennium CE, and European colonialism.
• Unrecorded events detection: Detects previously unrecorded admixture events, revealing pervasive admixture in human populations.
• Statistical inference: Applies sophisticated statistical techniques to analyze genetic data for dating and source inference.

Scientific Applications:

• Historical population genetics: Provides insights into the genetic impacts of major historical movements and interactions.
• Anthropological research: Aids reconstruction of demographic history and migration patterns of past populations.
• Cultural history correlation: Supplies genetic evidence that can be correlated with archaeological and historical records.

Methodology:

Exploits the genomic structure of admixed populations and applies statistical techniques to modern genetic data for fine-scale dating and characterization of admixture events, enabling construction of a worldwide admixture atlas.