Analysis of biogeographic ancestry reveals complex genetic histories for indigenous communities of St. Vincent and Trinidad

Torres, Jada Benn; Martucci, Victoria; Aldrich, Melinda C.; Vilar, Miguel G.; MacKinney, Taryn; Tariq, Muhammad; Gaieski, Jill B.; Hernandez, Ricardo Bharath; Browne, Zoila E.; Stevenson, Marlon; Walters, Wendell; Schurr, Theodore G.

doi:10.1002/ajpa.23859

Cited by 21 publications

(19 citation statements)

References 70 publications

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“…Often these references are tribally specific and at time appear geospatially implausible, yet they occur at a frequency to warrant further investigation. Indeed, there is limited historical evidence for a significant and protracted genetic contribution to Amerindian North American ancestry to Legacy African American lineages, although this is emerging for other African descended groups in Central and South America (e.g., in Cuba – Fortes‐Lima et al, 44 Trinidad and Saint Vincent – Benn Torres et al, 45 and in Tobago – Miljkov‐Gacic et al 46 ). Significantly, the most relevant Amerindian North American genomic reference sequences are currently missing from the public genomic databases 47…”

Section: Trends In Emic Perspectives On Ana Genetic Variationmentioning

confidence: 99%

Evolutionary perspectives on African North American genetic diversity: Origins and prospects for future investigations

Caldwell

Jackson

2021

Evolutionary Anthropology

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African‐descended peoples of the Americas represent an amalgamation of West, Central, and Southeast African regional and ethnic groups with modest gene flow from specific non‐African populations. Despite 16+ generations of residence in the Americas, there is a deficit of evolutionary knowledge about these populations. Focusing on Legacy African American, the African North American descendants of survivors of the transatlantic trade in enslaved Africans, we report on emic evolutionary perspectives of their self‐identity gleaned from our interviews of 600 individuals collected over 2 years. Gullah‐Geechee peoples of Carolina Coastal regions are a model case study due to their historical antiquity, substantial African retentions, relative geospatial isolation, and proposed progenitor status to other Legacy African American microethnic groups. We identify salient research questions for future studies that will begin to bridge the evolutionary gaps in our knowledge of these diverse peoples and the historical evidence for specific evolutionary processes.

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Section: Trends In Emic Perspectives On Ana Genetic Variationmentioning

confidence: 99%

Evolutionary perspectives on African North American genetic diversity: Origins and prospects for future investigations

Caldwell

Jackson

2021

Evolutionary Anthropology

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“…Moreover, oral histories of Indigenous survival are common in Puerto Rico and other islands (Forte 2006). Some of these oral narratives are reinforced by genetic research which has found reservoirs of Native American genetic ancestry in communities that self-identify with Indigenous or Maroon descent in Puerto Rico, Jamaica and other islands (Martínez-Cruzado, et al 2001;Madrilejo, et al 2015;Schurr, et al 2016;Fuller and Benn Torres 2018;Benn Torres, et al 2019). Furthermore, self-identified and government-recognized Indigenous communities are found throughout the Caribbean and the international Caribbean diaspora (Forte 2006).…”

Section: Autosomal Ancestry Of Pc-pr Communitiesmentioning

confidence: 99%

Ancient DNA Reconstructs the Genetic Legacies of Precontact Puerto Rico Communities

Nieves-Colón

Pestle

Reynolds

et al. 2019

Molecular Biology and Evolution

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Indigenous peoples have occupied the island of Puerto Rico since at least 3000 BC. Due to the demographic shifts that occurred after European contact, the origin(s) of these ancient populations, and their genetic relationship to present-day islanders, are unclear. We use ancient DNA to characterize the population history and genetic legacies of precontact Indigenous communities from Puerto Rico. Bone, tooth, and dental calculus samples were collected from 124 individuals from three precontact archaeological sites: Tibes, Punta Candelero, and Paso del Indio. Despite poor DNA preservation, we used target enrichment and high-throughput sequencing to obtain complete mitochondrial genomes (mtDNA) from 45 individuals and autosomal genotypes from two individuals. We found a high proportion of Native American mtDNA haplogroups A2 and C1 in the precontact Puerto Rico sample (40% and 44%, respectively). This distribution, as well as the haplotypes represented, supports a primarily Amazonian South American origin for these populations and mirrors the Native American mtDNA diversity patterns found in present-day islanders. Three mtDNA haplotypes from precontact Puerto Rico persist among Puerto Ricans and other Caribbean islanders, indicating that present-day populations are reservoirs of precontact mtDNA diversity. Lastly, we find similarity in autosomal ancestry patterns between precontact individuals from Puerto Rico and the Bahamas, suggesting a shared component of Indigenous Caribbean ancestry with close affinity to South American populations. Our findings contribute to a more complete reconstruction of precontact Caribbean population history and explore the role of Indigenous peoples in shaping the biocultural diversity of present-day Puerto Ricans and other Caribbean islanders.

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Section: Autosomal Ancestry Of Pc-pr Communitiesmentioning

confidence: 99%

Ancient DNA reconstructs the genetic legacies of pre-contact Puerto Rico communities

Nieves-Colón

Pestle

Reynolds³

et al. 2019

Preprint

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34Indigenous peoples have occupied the island of Puerto Rico since at least 3000 B.C. Due to the 35 demographic shifts that occurred after European contact, the origin(s) of these ancient populations, and 36 their genetic relationship to present-day islanders, are unclear. We use ancient DNA to characterize the 37 population history and genetic legacies of pre-contact Indigenous communities from Puerto Rico. Bone, 38 tooth and dental calculus samples were collected from 124 individuals from three pre-contact 39 archaeological sites: Tibes, Punta Candelero and Paso del Indio. Despite poor DNA preservation, we used 40 target enrichment and high-throughput sequencing to obtain complete mitochondrial genomes (mtDNA) 41 from 45 individuals and autosomal genotypes from two individuals. We found a high proportion of 42 Native American mtDNA haplogroups A2 and C1 in the pre-contact Puerto Rico sample (40% and 44%, 43 respectively). This distribution, as well as the haplotypes represented, support a primarily Amazonian 44 South American origin for these populations, and mirrors the Native American mtDNA diversity patterns 45 found in present-day islanders. Three mtDNA haplotypes from pre-contact Puerto Rico persist among 46 Puerto Ricans and other Caribbean islanders, indicating that present-day populations are reservoirs of pre-48 individuals from Puerto Rico and the Bahamas, suggesting a shared component of Indigenous Caribbean 49 ancestry with close affinity to South American populations. Our findings contribute to a more complete 50 reconstruction of pre-contact Caribbean population history and explore the role of Indigenous peoples in 51 shaping the biocultural diversity of present-day Puerto Ricans and other Caribbean islanders. 53Puerto Rico is the smallest of the Greater Antilles (Figure 1), the northernmost island grouping of the 55 Caribbean archipelago. The archaeological record of the island's prehistoric communities suggests a 56 dynamic population history with multiple peopling events, frequent migration, and expanding population 57 settlements (Rouse 1992; Rodríguez Ramos 2010). However, different lines of evidence produce 58 conflicting results about the origins and number of these migrations and the role of genetic admixture in

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Analysis of biogeographic ancestry reveals complex genetic histories for indigenous communities of St. Vincent and Trinidad

Cited by 21 publications

References 70 publications

Evolutionary perspectives on African North American genetic diversity: Origins and prospects for future investigations

Evolutionary perspectives on African North American genetic diversity: Origins and prospects for future investigations

Ancient DNA Reconstructs the Genetic Legacies of Precontact Puerto Rico Communities

Ancient DNA reconstructs the genetic legacies of pre-contact Puerto Rico communities

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