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

Chacón-Duque, Juan-Camilo; Adhikari, Kaustubh; Fuentes-Guajardo, Macarena; Mendoza-Revilla, Javier; Acuña-Alonzo, Victor; Barquera, Rodrigo; Quinto-Sánchez, Mirsha; Gómez-Valdés, Jorge; Everardo Martínez, Paola; Villamil-Ramírez, Hugo; Hünemeier, Tábita; Ramallo, Virginia; Silva de Cerqueira, Caio C.; Hurtado, Malena; Villegas, Valeria; Granja, Vanessa; Villena, Mercedes; Vásquez, René; Llop, Elena; Sandoval, José R.; Salazar-Granara, Alberto A.; Parolin, Maria-Laura; Sandoval, Karla; Peñaloza-Espinosa, Rosenda I.; Rangel-Villalobos, Hector; Winkler, Cheryl A.; Klitz, William; Bravi, Claudio; Molina, Julio; Corach, Daniel; Barrantes, Ramiro; Gomes, Verónica; Resende, Carlos; Gusmão, Leonor; Amorim, Antonio; Xue, Yali; Dugoujon, Jean-Michel; Moral, Pedro; González-José, Rolando; Schuler-Faccini, Lavinia; Salzano, Francisco M.; Bortolini, Maria-Cátira; Canizales-Quinteros, Samuel; Poletti, Giovanni; Gallo, Carla; Bedoya, Gabriel; Rothhammer, Francisco; Balding, David; Hellenthal, Garrett and Ruiz-Linares, Andrés (2018). Latin Americans show wide-spread Converso ancestry and imprint of local Native ancestry on physical appearance. Nature Communications, 9, article no. 5388.

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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.

Item Type: Journal Item
Copyright Holders: 2018 The Author(s)
ISSN: 2041-1723
Project Funding Details:
Funded Project NameProject IDFunding Body
UCL Global Engagement FundNot SetNot Set
Wellcome Investigator AwardWT107055AIANot Set
Keywords: Genetic variation; Quantitative trait loci
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Mathematics and Statistics
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 68437
Depositing User: Kaustubh Adhikari
Date Deposited: 10 Dec 2019 14:47
Last Modified: 12 Jul 2020 02:21
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