2014/09/25 by Andrés Ruiz‐Linares, Kaustubh Adhikari, Víctor Acuña-Alonzo +31 · 3 citations
Psychology · Biochemistry, Genetics and Molecular Biology · #Evolutionary Psychology and Human Behavior #Race, Genetics, and Society #Genetic and phenotypic traits in livestock
paper · pdf · doi:10.1371/journal.pgen.1004572
openalex publication_date 2014/09/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
The current genetic makeup of Latin America has been shaped by a history of extensive admixture between Africans, Europeans and Native Americans, a process taking place within the context of extensive geographic and social stratification. We estimated individual ancestry proportions in a sample of 7,342 subjects ascertained in five countries (Brazil, Chile, Colombia, México and Perú). These individuals were also characterized for a range of physical appearance traits and for self-perception of ancestry. The geographic distribution of admixture proportions in this sample reveals extensive population structure, illustrating the continuing impact of demographic history on the genetic diversity of Latin America. Significant ancestry effects were detected for most phenotypes studied. However, ancestry generally explains only a modest proportion of total phenotypic variation. Genetically estimated and self-perceived ancestry correlate significantly, but certain physical attributes have a strong impact on self-perception and bias self-perception of ancestry relative to genetically estimated ancestry.