The genomic history of the Iberian Peninsula over the past 8000 years.

Authors:
Iñigo Olalde Swapan Mallick Nick Patterson Nadin Rohland Vanessa Villalba-Mouco Marina Silva Katharina Dulias Ceiridwen J Edwards Francesca Gandini Maria Pala Pedro Soares Manuel Ferrando-Bernal Nicole Adamski Nasreen Broomandkhoshbacht Olivia Cheronet Brendan J Culleton Daniel Fernandes Ann Marie Lawson Matthew Mah Jonas Oppenheimer Kristin Stewardson Zhao Zhang Juan Manuel Jiménez Arenas Isidro Jorge Toro Moyano Domingo C Salazar-García Pere Castanyer Marta Santos Joaquim Tremoleda Marina Lozano Pablo García Borja Javier Fernández-Eraso José Antonio Mujika-Alustiza Cecilio Barroso Francisco J Bermúdez Enrique Viguera Mínguez Josep Burch Neus Coromina David Vivó Artur Cebrià Josep Maria Fullola Oreto García-Puchol Juan Ignacio Morales F Xavier Oms Tona Majó Josep Maria Vergès Antònia Díaz-Carvajal Imma Ollich-Castanyer F Javier López-Cachero Ana Maria Silva Carmen Alonso-Fernández Germán Delibes de Castro Javier Jiménez Echevarría Adolfo Moreno-Márquez Guillermo Pascual Berlanga Pablo Ramos-García José Ramos-Muñoz Eduardo Vijande Vila Gustau Aguilella Arzo Ángel Esparza Arroyo Katina T Lillios Jennifer Mack Javier Velasco-Vázquez Anna Waterman Luis Benítez de Lugo Enrich María Benito Sánchez Bibiana Agustí Ferran Codina Gabriel de Prado Almudena Estalrrich Álvaro Fernández Flores Clive Finlayson Geraldine Finlayson Stewart Finlayson Francisco Giles-Guzmán Antonio Rosas Virginia Barciela González Gabriel García Atiénzar Mauro S Hernández Pérez Armando Llanos Yolanda Carrión Marco Isabel Collado Beneyto David López-Serrano Mario Sanz Tormo António C Valera Concepción Blasco Corina Liesau Patricia Ríos Joan Daura María Jesús de Pedro Michó Agustín A Diez-Castillo Raúl Flores Fernández Joan Francès Farré Rafael Garrido-Pena Victor S Gonçalves Elisa Guerra-Doce Ana Mercedes Herrero-Corral Joaquim Juan-Cabanilles Daniel López-Reyes Sarah B McClure Marta Merino Pérez Arturo Oliver Foix Montserrat Sanz Borràs Ana Catarina Sousa Julio Manuel Vidal Encinas Douglas J Kennett Martin B Richards Kurt Werner Alt Wolfgang Haak Ron Pinhasi Carles Lalueza-Fox David Reich

Science 2019 03;363(6432):1230-1234

Department of Genetics, Harvard Medical School, Boston, MA, USA.

We assembled genome-wide data from 271 ancient Iberians, of whom 176 are from the largely unsampled period after 2000 BCE, thereby providing a high-resolution time transect of the Iberian Peninsula. We document high genetic substructure between northwestern and southeastern hunter-gatherers before the spread of farming. We reveal sporadic contacts between Iberia and North Africa by ~2500 BCE and, by ~2000 BCE, the replacement of 40% of Iberia's ancestry and nearly 100% of its Y-chromosomes by people with Steppe ancestry. We show that, in the Iron Age, Steppe ancestry had spread not only into Indo-European-speaking regions but also into non-Indo-European-speaking ones, and we reveal that present-day Basques are best described as a typical Iron Age population without the admixture events that later affected the rest of Iberia. Additionally, we document how, beginning at least in the Roman period, the ancestry of the peninsula was transformed by gene flow from North Africa and the eastern Mediterranean.

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Source
http://dx.doi.org/10.1126/science.aav4040DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6436108PMC
March 2019
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