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  • The genomic history of Iberian horses since the last Ice Age
    Publication . Garrido, Jaime Lira; Tressières, Gaétan; Chauvey, Lorelei; Schiavinato, Stéphanie; Calvière-Tonasso, Laure; Seguin-Orlando, Andaine; Southon, John; Shapiro, Beth; Bataille, Clément; Birgel, Julie; Wagner, Stefanie; Khan, Naveed; Liu, Xuexue; Rodanés, José María; Millán, Jesús V. Picazo; Giralt, Josep; Alonso, Natàlia; Aguilera, Isidro; Orsingher, Adriano; Trentacoste, Angela; Payà, Xavier; Morán, Marta; Eres, María Pilar Iborra; Albizuri, Silvia; Lamas, Silvia Valenzuela; Santandreu, Imma Mestres; Caixal, Montserrat Duran; Principal, Jordi; Huguet, Jordi Farré; Esteve, Xavier; Pasqual, Mireia Pedro; Sala, Nohemi; Pablos, Adrián; Martín, Patricia; Vergès, Josep Maria; Portero, Rodrigo; Arias, Pablo; Peredo, Roberto Ontañón; Detry, Cleia; Luís, Cristina; Cardoso, João Luis; Maeir, Aren M.; Valente, Maria J.; Grau, Elena; Poles, Vicent Estall i; Llorens, Joaquín Alfonso; González, Ana Miguélez; Gardeisen, Armelle; Cupitò, Michele; Tecchiati, Umberto; Bradley, Daniel G.; Horwitz, Liora Kolska; González, Esther Rodríguez; Espinet, Ariadna Nieto; Bover, Pere; Entrecanales, Rosa Ruiz; Estallo, Ignasi Garcés; Fragoso, Joaquín Jiménez; Celestino, Sebastián; Orlando, Ludovic
    Horses have inhabited Iberia (present-day Spain and Portugal) since the Middle Pleistocene, shaping a complex history in the region. Iberia has been proposed as a potential domestication centre and is renowned for producing world-class bloodlines. Here, we generate genome-wide sequence data from 87 ancient horse specimens (median coverage = 0.97X) from Iberia and the broader Mediterranean to reconstruct their genetic history over the last ~26,000 years. Here, we report that wild horses of the divergent IBE lineage inhabited Iberia from the Late Pleistocene, while domesticated DOM2 horses, native from the Pontic-Caspian steppes, already arrived ~1850 BCE. Admixture dating suggests breeding practices involving continued wild restocking until at least ~350 BCE, with IBE disappearing shortly after. Patterns of genetic affinity highlight the far-reaching influence of Iberian bloodlines across Europe and north Africa during the Iron Age and Antiquity, with continued impact extending thereafter, particularly during the colonization of the Americas.
    2025-08-02Journal article Open access Show more