A genetic perspective on Longobard-Era migrations.

Area of Science:

• Population Genetics
• Ancient DNA Analysis
• Early Medieval History

Background:

• The Longobard migration significantly impacted European demographics, yet its dynamics and genetic consequences remain poorly understood.
• Investigating early medieval population movements is crucial for understanding European genetic heritage.

Observation:

• This study sequenced 87 complete mitochondrial genomes from nine early medieval cemeteries in the Czech Republic, Hungary, and Italy.
• Necropolises with and without Longobard culture (LC) markers were sampled, alongside pre-migration burials (NLC).

Findings:

• Genetic analysis revealed shared rare haplogroups among LC individuals, indicating genetic similarity across regions.
• Bayesian modeling (ABC) demonstrated genetic resemblance between Hungarian and Italian LC necropolises.
• The strongest demographic model supported contact and admixture between LC and NLC communities.

Implications:

• This research provides novel genetic insights into the Longobard migration's demographic impact.
• The findings highlight complex admixture dynamics in medieval Europe, challenging previous assumptions.
• Understanding these historical population movements enriches our knowledge of European genetic diversity.