Population structure and ancestry prediction of Aedes aegypti (Diptera: Culicidae) supports a single African origin of Colombian populations
Título del documento: Population structure and ancestry prediction of Aedes aegypti (Diptera: Culicidae) supports a single African origin of Colombian populations
Revista: Memorias do Instituto Oswaldo Cruz
Base de datos: PERIÓDICA
Número de sistema: 000446475
ISSN: 0074-0276
Autores: 1
1
2
Instituciones: 1Universidad de Antioquia, Grupo de Biología y Control de Enfermedades Infecciosas, Medellín, Antioquia. Colombia
2Universidad Pedagógica y Tecnológica de Colombia, Laboratorio de Investigación en Genética Evolutiva, Tunja, Boyacá. Colombia
Año:
Volumen: 116
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés A previous phylogeographic study revealed two Aedes aegypti African-related mitochondrial lineages distributed in Colombian’s cities with different eco-epidemiologic characteristics with regard to dengue virus (DENV). It has been proposed these lineages might indicate independent invasion sources. Assessing to Colombian population structure and to support evidence of its probable source origin. We analysed a total of 267 individuals from cities of Bello, Riohacha and Villavicencio, which 241 were related to the West and East African mitochondrial lineages (termed here as WAL and EAL, respectively). Eight polymorphic microsatellite loci were analysed aiming population structure. Results indicate substantial gene flow among distant and low-connected cities composing a panmictic population with incipient local differentiation of Ae. aegypti is placed in Colombia. Likewise, genetic evidence indicates no significant differences among individuals related to WAL and EAL is placed. Minimal genetic differentiation in low-connected Ae. aegypti populations of Colombia, and lack concordance between mitochondrial and nuclear genealogies suggest that Colombian Ae. aegypti shared a common demographic history. Under this scenario, we suggest current Ae. aegypti population structure reflects a single origin instead of contemporary migration, which founding populations have a single source from a mitochondrial polymorphic African ancient
Disciplinas: Biología
Palabras clave: Evolución y filogenia,
Genética,
Insectos,
Mosquitos,
Genealogía,
Flujo génico,
Estructura poblacional,
Microsatélites,
Aedes aegypti,
Diptera,
Colombia
Keyword: Evolution and phylogeny,
Genetics,
Insects,
Mosquitoes,
Genealogy,
Gene flow,
Population structure,
Microsatellites,
Aedes aegypti,
Diptera,
Colombia
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