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Observational Study
. 2016 Jul-Aug;54(4):504-13.

[Genetic isolates and inbreeding customs in three rural municipalities from Honduras]

[Article in Spanish]
Edwin Francisco Herrera-Paz  1
Affiliations
  • PMID: 27197108
Free article
Observational Study

[Genetic isolates and inbreeding customs in three rural municipalities from Honduras]

[Article in Spanish]
Edwin Francisco Herrera-Paz. Rev Med Inst Mex Seguro Soc. 2016 Jul-Aug.
Free article

Abstract
in English, Spanish

Background: The isonymic method has been amply used to assess the approximate genetic structure of human communities. The objective of the study was to evaluate the magnitude of genetic isolation and inbreeding customs in 57 communities from three rural municipalities of Honduras using isonymy techniques.

Methods: The list of 408 different surnames from 20712 voters registered in the national electoral organism, residing in the 57 Honduran communities, was used for this study. For each community, random (IR), non-random (IN), and total (IT) isonymy values were calculated in order to assess inbreeding coefficients FST, FIS and FIT.

Results: High consanguinity due to isolation and to endogamous customs was unveiled in many communities. Significant deviation from the exogamous behavior typical of many human populations was observed in the three studied municipalities, when compared to other Honduran populations.

Conclusions: The studied communities present high consanguinity due to isolation, ethnic segregation and/or endogamous customs.

Introducción: el método de isonimia ha sido utilizado ampliamente para la determinación de la estructura genética aproximada de las poblaciones humanas. El objetivo del estudio fue evaluar la magnitud del aislamiento genético y las costumbres endogámicas en 57 comunidades de tres municipios rurales de Honduras utilizando las técnicas de isonimia. Métodos: se utilizó el listado de 408 apellidos diferentes utilizados por 20 712 votantes registrados en el Tribunal Supremo Electoral, que residen en las 57 comunidades estudiadas. Para cada comunidad se calcularon los valores de la isonimia aleatoria (IR), no aleatoria (IN) y total (IT) con el fin de evaluar los coeficientes de consanguinidad FST, FIS y FIT. Resultados: se encontró alta consanguinidad debido a aislamiento y a costumbres endogámicas en muchas comunidades. En los tres municipios se observó desviación significativa del comportamiento exógamo típico de otras poblaciones de Honduras. Conclusiones: muchas de las comunidades estudiadas presentan una elevada consanguinidad debido al aislamiento, la segregación étnica y/o costumbres endogámicas.

Keywords: Consanguinity; Genetics; Names; South American Indians.

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