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Artículo

Ancestral genetic legacy of the extant population of Argentina as predicted by autosomal and X-chromosomal DIPs

Caputo, MarielaIcon ; Amador, M. A.; Sala, Adriana AndreaIcon ; Riveiro dos Santos, A.; Santos, S.; Corach, DanielIcon
Fecha de publicación: 02/2021
Editorial: Springer Heidelberg
Revista: Molecular Genetics And Genomics
ISSN: 1617-4615
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Bioquímica y Biología Molecular

Resumen

Aiming to determine their ancestry diagnostic potential, we selected two sets of nuclear deletion/insertion polymorphisms (DIPs), including 30 located on autosomal chromosomes and 33 on the X chromosome. We analysed over 200 unrelated Argentinean individuals living in urban areas of Argentina. As in most American countries, the extant Argentinean population is the result of tricontinental genetic admixture. The peopling process within the continent was characterised by mating bias involving Native American and enslaved African females and European males. Diferential results were detected between autosomal DIPs and X-DIPs. The former showed that the European component was the largest (77.8%), followed by the Native American (17.9%) and African (4.2%) components, in good agreement with the previously published results. In contrast, X-DIPs showed that the European genetic contribution was also predominant but much smaller (52.9%) and considerably larger Native American and African contributions (39.6% and 7.5%, respectively). Genetic analysis revealed continental genetic contributions whose associated phenotypic traits have been mostly lost. The observed diferences between the estimated continental genetic contribution proportions based on autosomal DIPs and X-DIPs refect the efects of autosome and X-chromosome transmission behaviour and their diferent recombination patterns. This work shows the ability of the tested DIP panels to infer ancestry and confrm mating bias. To the best of our knowledge, this is the frst study focusing on ancestry-informative autosomal DIP and X-DIP comparisons performed in a sample representing the entire Argentinean population.
Palabras clave: AIMS , ARGENTINEAN POPULATION GENETICS , AUTOSOMAL-DIPS , EUROPEAN GENETIC COLONISATION , NATIVE AMERICAN , X-DIPS
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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/11336/150045
DOI: http://dx.doi.org/10.1007/s00438-020-01755-w
URL: https://link.springer.com/article/10.1007%2Fs00438-020-01755-w
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Articulos de OFICINA DE COORDINACION ADMINISTRATIVA HOUSSAY
Citación
Caputo, Mariela; Amador, M. A.; Sala, Adriana Andrea; Riveiro dos Santos, A.; Santos, S.; et al.; Ancestral genetic legacy of the extant population of Argentina as predicted by autosomal and X-chromosomal DIPs; Springer Heidelberg; Molecular Genetics And Genomics; 296; 3; 2-2021; 581-590
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