Migración africana y formación social en las Américas, 1500-2000

Moya, José C.

doi:10.3989/revindias.2012.010

Cited by 9 publications

(6 citation statements)

References 20 publications

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“…In addition to the above subpopulations, a few other Colombian strains felt into the African subpopulation hspAfrica1NAmerica , isolated from patients in the coastal region of the Nariño department that matches the African ancestry of the human population, descendent from the African slaves that established during 16th to the 19th century. 34,35 Although only 2 strains from Amazonian inhabitants were included, they classified within the hspIndigenous subpopulation previously reported in native communities of Latin America. 7,36 Thus, Colombia is a complex mosaic of H. pylori subpopulations with European, African or Indigenous ancestry that mirror the complex array of human groups distributed along the country.…”

Section: Discussionmentioning

confidence: 99%

“…This study shows evidence documenting an advance process of adaptive evolution that distinguish between subpopulations in different regions of Colombia, partially explained by the presence of environmental and cultural conditions specific to each Andin department. 34,35,37,38…”

Section: Discussionmentioning

confidence: 99%

“…The causal mechanism underlying this association is not clear, but it plausibly reflects a bacterial response to high concentrations of ions in the water and food due to Colombian geology, especially in the mountain areas of the country. 35 The interaction of these proteins with proteins of the host or the environment of the gastric mucosa exert a strong positive selection to attain the right adaption of the bacterial-host interaction. In genes like those coding for outer membrane proteins HofC and HopE, fixed SNPs occur in more than one position (table 1 and figure 5) suggesting that in some genes mutations in multiple sites are needed to get the right changes in regions of the protein to adapt to the human population.…”

Section: Discussionmentioning

confidence: 99%

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Selective pressure on membrane proteins drives the evolution of Helicobacter pylori Colombian subpopulations

Guevara-Tique

Torres

Valencia

et al. 2021

Preprint

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Helicobacter pylori have coevolved with mankind since its origins, adapting to different human groups. In America H. pylori has evolved in several subpopulations specific for regions or even countries. In this study we analyzed the genome of 163 Colombian strains along with 1,113 strains that represent worldwide H. pylori populations to better discern the ancestry and adaption to Colombian people. Population structure was inferred with FineStructure and chromosome painting identifying the proportion of ancestries in Colombian isolates. Phylogenetic relationship was analyzed using the SNPs present in the core genome. Also, a Fst analysis was done to identify the gene variants with the strongest fixation in the identified Colombian subpopulations in relation to their parent population hspSWEurope. Worldwide, population structure analysis allowed the identification of two Colombian subpopulations, the previously described hspSWEuropeColombia and a novel subpopulation named hspColombia. In addition, three subgroups of H. pylori were identified within hspColombia that follow their geographic origin. The Colombian H. pylori subpopulations represent an admixture of European, African and Native indigenous ancestry; although some genomes showed a high proportion of self-identity, suggesting a strong adaption to these mestizo Colombian groups. The Fst analysis identified 82 SNPs significantly fixed in 26 genes of the hspColombia subpopulation that encode mainly for outer membrane proteins and proteins involved in central metabolism. The strongest fixation indices were identified in genes encoding the membrane proteins HofC, HopE, FrpB-4 and Sialidase A. These findings demonstrate that H. pylori has evolved in Colombia to give rise to subpopulations following a geographical structure, evolving to an autochthonous genetic pool, drive by a positive selective pressure especially on genes encoding for outer membrane proteins.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Selective pressure on membrane proteins drives the evolution of Helicobacter pylori Colombian subpopulations

Guevara-Tique

Torres

Valencia

et al. 2021

Preprint

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“…Fuente suministrada a Wikimedia Commons, el repositorio de medios gratuito de Geographicus Rare Antique Maps como parte de un proyecto de cooperación. https://www.geographicus.com/ 15% de origen javanés y un 52% afrodescendiente (Moya 2012).…”

Section: Cuadro 131 El Mercado De Mompoxunclassified

Capítulo 13: Presencia Africana en la Amazonía: Un Vistazo

Rosero-Peña¹

2022

Relatório De Avaliação Da Amazônia 2021

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This chapter provides evidence on the importance of African descendants in the construction of the Amazon and other tropical areas in the Americas, and highlights their importance for long-lasting sustainable development strategies in the region. It looks at both the cultural exchange and socio-historic perspectives, emphasizing land settlement patterns, natural resource use, and management practices. It focuses mostly on Brazil, Suriname, and Colombia, and emphasizes the importance of eliminating the invisibility of African descendant peoples in academic research and policy.

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“…For a discussion of the scholarly literature on slavery and African culture in Brazil seeReis and Klein (2011) 15. For an attempt to move beyond a single focus on slavery and examine the African presence in the Americas as a history of migration and adaptation, seeMoya (2012).…”

mentioning

confidence: 99%

Migration and the historical formation of Latin America in a global perspective

Moya

2018

Sociologias

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In this article I analyse how transcontinental migrations, the various forms that these took (Paleolithic first settlement, conquest and colonialism, slavery, free mass movements, and mercantile diasporas), and the way these interacted in the receiving environments, shaped the historical formation of Latin America. The article shows how these interactions explain the key apparent contradictions of Latin America: that it is both the most racially diverse and the most culturally homogeneous region in the world; that it has the highest crime/homicide rates but also the lowest levels of civil and international wars, holocausts, and other forms of collective violence; and that it has the highest levels of social inequality in the world but also some of its historically most egalitarian areas.

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Migración africana y formación social en las Américas, 1500-2000

Cited by 9 publications

References 20 publications

Selective pressure on membrane proteins drives the evolution of Helicobacter pylori Colombian subpopulations

Selective pressure on membrane proteins drives the evolution of Helicobacter pylori Colombian subpopulations

Capítulo 13: Presencia Africana en la Amazonía: Un Vistazo

Migration and the historical formation of Latin America in a global perspective

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