Ancient genomes in South Patagonia reveal population movements associated with technological shifts and geography

LUISI, PIERRE; SANTIAGO, FERNANDO; ESPINOSA-PARRILLA, YOLANDA; LAWSON, ANN MARIE; KENNETT, DOUGLAS J.; ROHLAND, NADIN; NORES, RODRIGO; MOTTI, JOSEFINA M. B.; D' ANGELO DEL CAMPO, MANUEL D.; PRIETO, ALFREDO; HARPER, THOMAS K.; LALUEZA-FOX, CARLES; GUICHÓN, RICARDO A.; REICH, DAVID; NAKATSUKA, NATHAN; SALEMME, MÓNICA; VECCHI, RODRIGO J.; ADAMSKI, NICOLE; CULLETON, BRENDAN J.; MALLICK, SWAPAN; CABANA, GRACIELA S.

NATURE COMMUNICATIONS

Nature Publishing Group

Lugar: Nueva York; Año: 2020 vol. 11 p. 1 - 12

2041-1723

Archaeological research documents major technological shifts among people who have livedin the southern tip of South America (South Patagonia) during the last thirteen millennia,including the development of marine-based economies and changes in tools and rawmaterials. It has been proposed that movements of people spreading culture and technologypropelled some of these shifts, but these hypotheses have not been tested with ancient DNA.Here we report genome-wide data from 20 ancient individuals, and co-analyze it with previously reported data. We reveal that immigration does not explain the appearance of marineadaptations in South Patagonia. We describe partial genetic continuity since ~6600 BP andtwo later gene flows correlated with technological changes: one between 4700?2000 BP thataffected primarily marine-based groups, and a later one impacting all