RT Journal Article SR Electronic T1 The Beaker Phenomenon and the Genomic Transformation of Northwest Europe JF bioRxiv FD Cold Spring Harbor Laboratory SP 135962 DO 10.1101/135962 A1 Iñigo Olalde A1 Selina Brace A1 Morten E. Allentoft A1 Ian Armit A1 Kristian Kristiansen A1 Nadin Rohland A1 Swapan Mallick A1 Thomas Booth A1 Anna Szécsényi-Nagy A1 Alissa Mittnik A1 Eveline Altena A1 Mark Lipson A1 Iosif Lazaridis A1 Nick Patterson A1 Nasreen Broomandkhoshbacht A1 Yoan Diekmann A1 Zuzana Faltyskova A1 Daniel Fernandes A1 Matthew Ferry A1 Eadaoin Harney A1 Peter de Knijff A1 Megan Michel A1 Jonas Oppenheimer A1 Kristin Stewardson A1 Alistair Barclay A1 Kurt W. Alt A1 Azucena Avilés Fernández A1 Eszter Bánffy A1 Maria Bernabò-Brea A1 David Billoin A1 Concepción Blasco A1 Clive Bonsall A1 Laura Bonsall A1 Tim Allen A1 Lindsey Büster A1 Sophie Carver A1 Laura Castells Navarro A1 Oliver Edward Craig A1 Gordon T. Cook A1 Barry Cunliffe A1 Anthony Denaire A1 Kirsten Egging Dinwiddy A1 Natasha Dodwell A1 Michal Ernée A1 Christopher Evans A1 Milan Kuchařík A1 Joan Francès Farré A1 Harry Fokkens A1 Chris Fowler A1 Michiel Gazenbeek A1 Rafael Garrido Pena A1 María Haber-Uriarte A1 Elżbieta Haduch A1 Gill Hey A1 Nick Jowett A1 Timothy Knowles A1 Ken Massy A1 Saskia Pfrengle A1 Philippe Lefranc A1 Olivier Lemercier A1 Arnaud Lefebvre A1 Joaquín Lomba Maurandi A1 Tona Majó A1 Jacqueline I. McKinley A1 Kathleen McSweeney A1 Mende Balázs Gusztáv A1 Alessandra Modi A1 Gabriella Kulcsár A1 Viktória Kiss A1 András Czene A1 Róbert Patay A1 Anna Endrődi A1 Kitti Köhler A1 Tamás Hajdu A1 João Luís Cardoso A1 Corina Liesau A1 Michael Parker Pearson A1 Piotr Włodarczak A1 T. Douglas Price A1 Pilar Prieto A1 Pierre-Jérôme Rey A1 Patricia Ríos A1 Roberto Risch A1 Manuel A. Rojo Guerra A1 Aurore Schmitt A1 Joël Serralongue A1 Ana Maria Silva A1 Václav Smrčka A1 Luc Vergnaud A1 João Zilhão A1 David Caramelli A1 Thomas Higham A1 Volker Heyd A1 Alison Sheridan A1 Karl-Göran Sjögren A1 Mark G. Thomas A1 Philipp W. Stockhammer A1 Ron Pinhasi A1 Johannes Krause A1 Wolfgang Haak A1 Ian Barnes A1 Carles Lalueza-Fox A1 David Reich YR 2017 UL http://biorxiv.org/content/early/2017/05/09/135962.abstract AB Bell Beaker pottery spread across western and central Europe beginning around 2750 BCE before disappearing between 2200–1800 BCE. The mechanism of its expansion is a topic of long-standing debate, with support for both cultural diffusion and human migration. We present new genome-wide ancient DNA data from 170 Neolithic, Copper Age and Bronze Age Europeans, including 100 Beaker-associated individuals. In contrast to the Corded Ware Complex, which has previously been identified as arriving in central Europe following migration from the east, we observe limited genetic affinity between Iberian and central European Beaker Complex-associated individuals, and thus exclude migration as a significant mechanism of spread between these two regions. However, human migration did have an important role in the further dissemination of the Beaker Complex, which we document most clearly in Britain using data from 80 newly reported individuals dating to 3900–1200 BCE. British Neolithic farmers were genetically similar to contemporary populations in continental Europe and in particular to Neolithic Iberians, suggesting that a portion of the farmer ancestry in Britain came from the Mediterranean rather than the Danubian route of farming expansion. Beginning with the Beaker period, and continuing through the Bronze Age, all British individuals harboured high proportions of Steppe ancestry and were genetically closely related to Beaker-associated individuals from the Lower Rhine area. We use these observations to show that the spread of the Beaker Complex to Britain was mediated by migration from the continent that replaced >90% of Britain’s Neolithic gene pool within a few hundred years, continuing the process that brought Steppe ancestry into central and northern Europe 400 years earlier.