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Artículo

Ancient mitogenomes from the Southern Pampas of Argentina reflect local differentiation and limited extra-regional linkages after rapid initial colonization

Motti, Josefina María BrendaIcon ; Pauro, MaiaIcon ; Scabuzzo, ClaraIcon ; García, AngelinaIcon ; Aldazabal, Veronica BeatrizIcon ; Vecchi, Rodrigo JavierIcon ; Bayón, Cristina; Pastor, NicolásIcon ; Demarchi, DarioIcon ; Bravi, Claudio MarceloIcon ; Reich, David; Cabana, Graciela Susana; Nores, RodrigoIcon
Fecha de publicación: 06/2023
Editorial: John Wiley & Sons
Revista: American Journal of Biological Anthropology
ISSN: 2692-7691
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Arqueología

Resumen

Objective: This study aims to contribute to the recovery of Indigenous evolutionary history in the Southern Pampas region of Argentina through an analysis of ancient complete mitochondrial genomes. Materials and Methods: We generated DNA data for nine complete mitogenomes from the Southern Pampas, dated to between 2531 and 723 cal BP. In combination with previously published ancient mitogenomes from the region and from throughout South America, we documented instances of extra-regional lineage-sharing, and estimated coalescent ages for local lineages using a Bayesian method with tip calibrations in a phylogenetic analysis. Results: We identified a novel mitochondrial haplogroup, B2b16, and two recently defined haplogroups, A2ay and B2ak1, as well as three local haplotypes within founder haplogroups C1b and C1d. We detected lineage-sharing with ancient and contemporary individuals from Central Argentina, but not with ancient or contemporary samples from North Patagonian or Littoral regions of Argentina, despite archeological evidence of cultural interactions with the latter regions. The estimated coalescent age of these shared lineages is ~10,000 years BP. Discussion: The history of the human populations in the Southern Pampas is temporally deep, exhibiting long-term continuity of mitogenome lineages. Additionally, the identification of highly localized mtDNA clades accords with a model of relatively rapid initial colonization of South America by Indigenous communities, followed by more local patterns of limited gene flow and genetic drift in various South American regions, including the Pampas.
Palabras clave: ANCIENT DNA , MITOCHONDRIAL DNA , NATIVE AMERICANS , PAMPAS REGION , SOUTHERN CONE
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/212236
URL: https://onlinelibrary.wiley.com/doi/full/10.1002/ajpa.24727
DOI: http://dx.doi.org/10.1002/ajpa.24727
Colecciones
Articulos(CCT - BAHIA BLANCA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos(CICYTTP)
Articulos de CENTRO DE INV.CIENT.Y TRANSFERENCIA TEC A LA PROD
Articulos(IDACOR)
Articulos de INSTITUTO DE ANTROPOLOGIA DE CORDOBA
Articulos(IMBICE)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA CELULAR (I)
Articulos(IMHICIHU)
Articulos de INST.MULTIDISCIP.DE HISTORIA Y CS.HUMANAS
Citación
Motti, Josefina María Brenda; Pauro, Maia; Scabuzzo, Clara; García, Angelina; Aldazabal, Veronica Beatriz; et al.; Ancient mitogenomes from the Southern Pampas of Argentina reflect local differentiation and limited extra-regional linkages after rapid initial colonization; John Wiley & Sons; American Journal of Biological Anthropology; 181; 2; 6-2023; 216-230
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