| Genetic population structure of two African-Ecuadorian communities of Esmeraldas. | |
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MedLine Citation:
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PMID: 10378455 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The genetic structure of two African-Ecuadorian communities, Rio Cayapas and Viche (Esmeraldas province, northwest Ecuador), was studied on the basis of ACP1, ADA, AK1, CA2, ESD, GLO1, G6PD, PGD, and PGM1 subtypes and thermostability, PGM2, HBbeta, F13A, F13B, ORM1, AHSG, C6, C7, and APOC2 gene frequency, and migration data on 255 individuals. The fixation index of Wright (F(ST)), correspondence, and genetic distance analysis were applied to compare the genetic relationships between these communities and other American populations of African ancestry. F(ST) values from the migration data and surname origins suggest that Rio Cayapas is genetically more isolated and shows less mobility and admixture than does Viche. The genetic admixture estimates indicate a large contribution of African genes to the gene pool of both communities (74.3% to 58.4%), whereas the proportion of the Amerindian component differs significantly (14.5% in Rio Cayapas to 27.6% in Viche). |
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Authors:
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C Martínez-Labarga; O Rickards; R Scacchi; R M Corbo; G Biondi; J A Peña; C Varas de Vieira; A E Guevara; M S Santurino; G F de Stefano |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: American journal of physical anthropology Volume: 109 ISSN: 0002-9483 ISO Abbreviation: Am. J. Phys. Anthropol. Publication Date: 1999 Jun |
Date Detail:
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Created Date: 1999-07-23 Completed Date: 1999-07-23 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0400654 Medline TA: Am J Phys Anthropol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 159-74 Citation Subset: IM |
Affiliation:
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Department of Biology, University of Rome Tor Vergata, Italy. martine@uniroma2.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Africa
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ethnology African Continental Ancestry Group / genetics* Demography Ecuador Emigration and Immigration Enzymes / genetics Ethnic Groups / genetics Female Gene Frequency* Gene Pool* Humans Male Phenotype Phylogeny Proteins / genetics |
| Chemical | |
Reg. No./Substance:
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0/Enzymes; 0/Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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