Evidence map›Paper›PMID 31350885›Full record

ArticleMolecular biology and evolution2019

The Current Genomic Landscape of Western South America: Andes, Amazonia, and Pacific Coast.

Chiara Barbieri, Rodrigo Barquera, Leonardo Arias, José R Sandoval, Oscar Acosta, Camilo Zurita, Abraham Aguilar-Campos, Ana M Tito-Álvarez, Ricardo Serrano-Osuna, Russell D Gray and 7 more

Abstract readHistorical Article
In one paragraph

Article in Molecular biology and evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. Family relations of Moche elite burials on the North Coast of Peru (~500 CE): Analyses of the Señora de Cao and relatives.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  15. Genomic perspectives on human dispersals during the Holocene.Proceedings of the National Academy of Sciences of the United States of America · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Chiara BarbieriDepartment of Linguistic and Cultural Evolution, Max Planck Institute for the Science of Human History, Jena, Germany.
Rodrigo BarqueraDepartment of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany.
Leonardo AriasDepartment of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
José R SandovalCentro de Investigación de Genética y Biología Molecular (CIGBM), Universidad de San Martín de Porres, Lima, Peru.
Oscar AcostaCentro de Investigación de Genética y Biología Molecular (CIGBM), Universidad de San Martín de Porres, Lima, Peru.
Camilo ZuritaCátedra de Inmunología, Facultad de Medicina, Universidad Central del Ecuador, Quito, Ecuador.
Abraham Aguilar-CamposClinical Laboratory, Unidad Médica de Alta Especialidad (UMAE) # 2, Instituto Mexicano del Seguro Social (IMSS), Ciudad Obregón, Sonora, Mexico.
Ana M Tito-ÁlvarezCarrera de Enfermería, Facultad de Ciencias de la Salud, Universidad de Las Américas, Quito, Ecuador.
Ricardo Serrano-OsunaClinical Laboratory, Unidad Médica de Alta Especialidad (UMAE) # 2, Instituto Mexicano del Seguro Social (IMSS), Ciudad Obregón, Sonora, Mexico.
Russell D GrayDepartment of Linguistic and Cultural Evolution, Max Planck Institute for the Science of Human History, Jena, Germany.
Fabrizio MafessoniDepartment of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Paul HeggartyDepartment of Linguistic and Cultural Evolution, Max Planck Institute for the Science of Human History, Jena, Germany.
Kentaro K ShimizuDepartment of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland.
Ricardo FujitaCentro de Investigación de Genética y Biología Molecular (CIGBM), Universidad de San Martín de Porres, Lima, Peru.
Mark StonekingDepartment of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Irina PugachDepartment of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Lars Fehren-SchmitzUCSC Paleogenomics, Department of Anthropology, University of California, Santa Cruz, CA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Studies of Native South American genetic diversity have helped to shed light on the peopling and differentiation of the continent, but available data are sparse for the major ecogeographic domains. These include the Pacific Coast, a potential early migration route; the Andes, home to the most expansive complex societies and to one of the most widely spoken indigenous language families of the continent (Quechua); and Amazonia, with its understudied population structure and rich cultural diversity. Here, we explore the genetic structure of 176 individuals from these three domains, genotyped with the Affymetrix Human Origins array. We infer multiple sources of ancestry within the Native American ancestry component; one with clear predominance on the Coast and in the Andes, and at least two distinct substrates in neighboring Amazonia, including a previously undetected ancestry characteristic of northern Ecuador and Colombia. Amazonian populations are also involved in recent gene-flow with each other and across ecogeographic domains, which does not accord with the traditional view of small, isolated groups. Long-distance genetic connections between speakers of the same language family suggest that indigenous languages here were spread not by cultural contact alone. Finally, Native American populations admixed with post-Columbian European and African sources at different times, with few cases of prolonged isolation. With our results we emphasize the importance of including understudied regions of the continent in high-resolution genetic studies, and we illustrate the potential of SNP chip arrays for informative regional-scale analysis.

Indexed as

Genome, HumanHistory, AncientHuman MigrationHumansLanguagePeruPhylogeographyadmixturehuman migrationNative American population geneticsruns of homozygositySouth American prehistory

Identifiers

PMID31350885
PMCPMC6878948

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.