ArticlePLoS genetics2015
Evidence for a Common Origin of Blacksmiths and Cultivators in the Ethiopian Ari within the Last 4500 Years: Lessons for Clustering-Based Inference.
Article in PLoS genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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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.
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Who cites it
37 citing papers in PubMed, 249 citations in OpenAlex.
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- Whole genomes from Angola and Mozambique inform about the origins and dispersals of major African migrations.Nature communications · 2023Article
- Genome-wide variation in the Angolan Namib Desert reveals unique pre-Bantu ancestry.Science advances · 2023Article
- Methods for Assessing Population Relationships and History Using Genomic Data.Annual review of genomics and human genetics · 2023Review
- Dense sampling of ethnic groups within African countries reveals fine-scale genetic structure and extensive historical admixture.Science advances · 2023Article
- Hunter-gatherer genomes reveal diverse demographic trajectories during the rise of farming in Eastern Africa.Current biology : CB · 2022Article
- Evidence of the interplay of genetics and culture in Ethiopia.Nature communications · 2021Article
- The Genes of Freedom: Genome-Wide Insights into Marronage, Admixture and Ethnogenesis in the Gulf of Guinea.Genes · 2021Article
- Structure and ancestry patterns of Ethiopians in genome-wide autosomal DNA.Human molecular genetics · 2021Review
- A Chromosome-Painting-Based Pipeline to Infer Local Ancestry under Limited Source Availability.Genome biology and evolution · 2021Article
- Changes in the fine-scale genetic structure of Finland through the 20th century.PLoS genetics · 2021Article
- Sometimes hidden but always there: the assumptions underlying genetic inference of demographic histories.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Review
- High Levels of Genetic Diversity within Nilo-Saharan Populations: Implications for Human Adaptation.American journal of human genetics · 2020Article
- Article
- Reconstructed Lost Native American Populations from Eastern Brazil Are Shaped by Differential Jê/Tupi Ancestry.Genome biology and evolution · 2019Article
- European Roma groups show complex West Eurasian admixture footprints and a common South Asian genetic origin.PLoS genetics · 2019Article
- Genetic homogenization of indigenous sheep breeds in Northwest Africa.Scientific reports · 2019Article
- Patterns of genetic differentiation and the footprints of historical migrations in the Iberian Peninsula.Nature communications · 2019Article
- Genetic legacy of state centralization in the Kuba Kingdom of the Democratic Republic of the Congo.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
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Authors and funding
10 authors at 5 institutions in 3 countries.
Funding
Abstract
The Ari peoples of Ethiopia are comprised of different occupational groups that can be distinguished genetically, with Ari Cultivators and the socially marginalised Ari Blacksmiths recently shown to have a similar level of genetic differentiation between them (FST ≈ 0.023 - 0.04) as that observed among multiple ethnic groups sampled throughout Ethiopia. Anthropologists have proposed two competing theories to explain the origins of the Ari Blacksmiths as (i) remnants of a population that inhabited Ethiopia prior to the arrival of agriculturists (e.g. Cultivators), or (ii) relatively recently related to the Cultivators but presently marginalized in the community due to their trade. Two recent studies by different groups analysed genome-wide DNA from samples of Ari Blacksmiths and Cultivators and suggested that genetic patterns between the two groups were more consistent with model (i) and subsequent assimilation of the indigenous peoples into the expanding agriculturalist community. We analysed the same samples using approaches designed to attenuate signals of genetic differentiation that are attributable to allelic drift within a population. By doing so, we provide evidence that the genetic differences between Ari Blacksmiths and Cultivators can be entirely explained by bottleneck effects consistent with hypothesis (ii). This finding serves as both a cautionary tale about interpreting results from unsupervised clustering algorithms, and suggests that social constructions are contributing directly to genetic differentiation over a relatively short time period among previously genetically similar groups.
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