Consulta: subjectFacets:"Interethnic admixture"
Registros recuperados: 3
Data/hora: 09/06/2024 17:25:21

Interethnic admixture and the evolution of Latin American populations
Provedor de dados: 74
Autores: Salzano,Francisco Mauro; Sans,Mónica.
A general introduction to the origins and history of Latin American populations is followed by a systematic review of the data from molecular autosomal assessments of the ethnic/continental (European, African, Amerindian) ancestries for 24 Latin American countries or territories. The data surveyed are of varying quality but provide a general picture of the present constitution of these populations. A brief discussion about the applications of these results (admixture mapping) is also provided. Latin American populations can be viewed as natural experiments for the investigation of unique anthropological and epidemiological issues.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Interethnic admixture; Latin America; Population structure.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000200003

Genetic characterization of the population of São Luís, MA, Brazil
Provedor de dados: 74
Autores: Ferreira,Francileide Lisboa; Leal-Mesquita,Emygdia Rosa; Santos,Sidney Emanuel Batista dos; Ribeiro-dos-Santos,Ândrea Kely Campos.
Five loci (vWA1, F13A1, D12S67, Apo-B and D1S80) were investigated by polyacrylamide gel electrophoresis followed by silver staining in a sample of 177 individuals from the population of São Luís, State of Maranhão, Brazil. A total of 70 different alleles were identified. A statistically significant deviation from the Hardy-Weinberg equilibrium was observed in a single locus (F13A1, p = 0.0075). The average heterozygosity (H) was estimated at 77.7%, the mean number of alleles per locus as 14. The PD (capacity of genotype differentiation at each locus) ranged from 88.9% (vWA1) to 96.7% (F13A1). The combined PE (power of exclusion) of these five loci was 99.8%. In terms of racial admixture (42% European, 39% Indian, and 19% African Black ancestry), São Luís...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon region; DNA; Polymorphisms; VNTRs; STRs; Interethnic admixture.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100004

Allelic frequencies and statistical data obtained from 12 codis STR loci in an admixed population of the Brazilian Amazon
Provedor de dados: 74
Autores: Francez,Pablo Abdon da Costa; Rodrigues,Elzemar Martins Ribeiro; Frazão,Gleycianne Furtado; Borges,Nathalia Danielly dos Reis; Santos,Sidney Emanuel Batista dos.
The allelic frequencies of 12 short tandem repeat loci were obtained from a sample of 307 unrelated individuals living in Macapá, a city in the northern Amazon region, Brazil. These loci are the most commonly used in forensics and paternity testing. Based on the allele frequency obtained for the population of Macapá, we estimated an interethnic admixture for the three parental groups (European, Native American and African) of, respectively, 46%, 35% and 19%. Comparing these allele frequencies with those of other Brazilian populations and of the Iberian Peninsula population, no significant distances were observed. The interpopulation genetic distances (F ST coefficients) to the present database ranged from F ST = 0.0016 between Macapá and Belém to F ST =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelic frequencies; Brazilian Amazon population; Interethnic admixture.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100007