Latin Americans show wide-spread Converso ancestry and imprint of local Native ancestry on physical appearance

Juan Camilo Chacón-Duque, Kaustubh Adhikari, Macarena Fuentes-Guajardo, Javier Mendoza-Revilla, Victor Acuña-Alonzo, Rodrigo Barquera, Mirsha Quinto-Sánchez, Jorge Gómez-Valdés, Paola Everardo Martínez, Hugo Villamil-Ramírez, Tábita Hünemeier, Virginia Ramallo, Caio C. Silva de Cerqueira, Malena Hurtado, Valeria Villegas, Vanessa Granja, Mercedes Villena, René Vásquez, Elena Llop, José R. SandovalAlberto A. Salazar-Granara, Maria Laura Parolin, Karla Sandoval, Rosenda I. Peñaloza-Espinosa, Hector Rangel-Villalobos, Cheryl A. Winkler, William Klitz, Claudio Bravi, Julio Molina, Daniel Corach, Ramiro Barrantes, Verónica Gomes, Carlos Resende, Leonor Gusmão, Antonio Amorim, Yali Xue, Jean Michel Dugoujon, Pedro Moral, Rolando González-José, Lavinia Schuler-Faccini, Francisco M. Salzano, Maria Cátira Bortolini, Samuel Canizales-Quinteros, Giovanni Poletti, Carla Gallo, Gabriel Bedoya, Francisco Rothhammer, David Balding, Garrett Hellenthal, Andrés Ruiz-Linares

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121 Scopus citations

Abstract

Historical records and genetic analyses indicate that Latin Americans trace their ancestry mainly to the intermixing (admixture) of Native Americans, Europeans and Sub-Saharan Africans. Using novel haplotype-based methods, here we infer sub-continental ancestry in over 6,500 Latin Americans and evaluate the impact of regional ancestry variation on physical appearance. We find that Native American ancestry components in Latin Americans correspond geographically to the present-day genetic structure of Native groups, and that sources of non-Native ancestry, and admixture timings, match documented migratory flows. We also detect South/East Mediterranean ancestry across Latin America, probably stemming mostly from the clandestine colonial migration of Christian converts of non-European origin (Conversos). Furthermore, we find that ancestry related to highland (Central Andean) versus lowland (Mapuche) Natives is associated with variation in facial features, particularly nose morphology, and detect significant differences in allele frequencies between these groups at loci previously associated with nose morphology in this sample.

Original languageEnglish
Article number5388
JournalNature Communications
Volume9
Issue number1
DOIs
StatePublished - 1 Dec 2018

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© 2018, The Author(s).

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