ANCIENT AND RECENT ADMIXTURE LAYERS IN SICILY AND SOUTHERN ITALY TRACE MULTIPLE MIGRATION ROUTES ALONG THE MEDITERRANEAN

Luca Sineo, Miguel Vilar, Alessio Boattini, Elisabetta Cilli, Marco Sazzini, Chiara Barbieri, Luca Pagani, Sara De Fanti, Graziella Ciani, Andrea Quagliariello, Stefania Sarno, Eugenio Bortolini, Guido Alberto Gnecchi Ruscone, Etienne Guichard, Rosalba Petrilli, Spencer Wells, Ilia Mikerezi, Donata Luiselli, Davide Pettener

Risultato della ricerca: Articlepeer review

23 Citazioni (Scopus)

Abstract

The Mediterranean shores stretching between Sicily, Southern Italy and the Southern Balkans witnessed a long series of migration processes and cultural exchanges. Accordingly, present-day population diversity is composed by multiple genetic layers, which make the deciphering of different ancestral and historical contributes particularly challenging. We address this issue by genotyping 511 samples from 23 populations of Sicily, Southern Italy, Greece and Albania with the Illumina GenoChip Array, also including new samples from Albanian- and Greek-speaking ethno-linguistic minorities of Southern Italy. Our results reveal a shared Mediterranean genetic continuity, extending from Sicily to Cyprus, where Southern Italian populations appear genetically closer to Greek-speaking islands than to continental Greece. Besides a predominant Neolithic background, we identify traces of Post-Neolithic Levantine- and Caucasus-related ancestries, compatible with maritime Bronze-Age migrations. We argue that these results may have important implications in the cultural history of Europe, such as in the diffusion of some Indo-European languages. Instead, recent historical expansions from North-Eastern Europe account for the observed differentiation of present-day continental Southern Balkan groups. Patterns of IBD-sharing directly reconnect Albanian-speaking Arbereshe with a recent Balkan-source origin, while Greek-speaking communities of Southern Italy cluster with their Italian-speaking neighbours suggesting a long-term history of presence in Southern Italy.
Lingua originaleEnglish
Numero di pagine12
RivistaScientific Reports
Volume7: 1984
Stato di pubblicazionePublished - 2017

All Science Journal Classification (ASJC) codes

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