Título:
Morphological and genetic differentiation within the Southernmost Vector of Chagas disease: Triatoma patagonica (Hemiptera ± Reduviidae)
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Autor:
Nattero, J.
Pita Mimbacas, Sebastián
Calleros Basilio, Lucía
Crocco, L.
Panzera Crespo, Yanina
Rodríguez, C. S.
Panzera Arballo, Francisco
Pita Mimbacas, Sebastián
Calleros Basilio, Lucía
Crocco, L.
Panzera Crespo, Yanina
Rodríguez, C. S.
Panzera Arballo, Francisco
Tutor:
Tipo de documento:
Artículo
Editor:
Palabras clave:
Enfermedad de Chagas
Triatoma Pataónica
Genética
Triatoma Pataónica
Genética
Descriptores:
Año de publicación:
2016
Contenido:
Resumen:
The epidemiological importance of Chagas disease vectors largely depends on their spreading ability and adaptation to domestic habitats. Triatoma patagonica is a secondary vector of Chagas disease endemic of Argentina, and it has been found colonizing domiciles and most commonly peridomiciliary structures in several Argentine provinces and morphological variation along its distribution range have been described. To asses if population differentiation represents geographic variants or true biological species, multiple genetic and phenotypic approaches and laboratory cross-breeding were performed in T. patagonica peridomestic populations. Analyses of chromatic variation of forewings, their size and the content of C-heterochromatin on chromosomes revealed that populations are structured following a North-South latitudinal variation. Cytochrome c oxidase I mitochondrial gene (COI) nucleotide analysis showed a mean genetic distance of 5.2% between the most distant populations. The cross-breeding experiments suggest a partial reproductive isolation between some populations with 40% of couples not laying eggs and low hatching efficiency. Our findings reveal phenotypic and genetic variations that suggest an incipient differentiation processes among T. patagonica populations with a pronounced phenotypic and genetic divergence between the most distant populations. The population differentiation here reported is probably related to differential environmental conditions and it could reflect the occurrence of an incipient speciation process in T. patagonica.
Descripción:
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Editorial:
PLoS
EN:
PLoS ONE, 2016 11 (12), art. no. e0168853
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Citación:
Nattero, J., Pita, S., Calleros, L., y otros. "Morphological and genetic differentiation within the Southernmost Vector of Chagas disease: Triatoma patagonica (Hemiptera ± Reduviidae)". PLoS ONE [en línea]. 2016 11 (12), art. no. e0168853. doi: 10.1371/journal.pone.0168853
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ISSN:
1932-6203
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Cobertura geográfica:
Argentina
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Departamento académico:
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Licencia:
Licencia Creative Commons Atribución (CC - By 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| 101371journalpone0168853.pdf | — | 2.83 MB | Adobe PDF |