Mitochondrial DNA variation of Triatoma infestans populations and its implication on the specific status of T. melanosoma
Mem. Inst. Oswaldo Cruz
;
94(suppl.1): 229-38, Sept. 1999. ilus, mapas, tab
Artículo
en Inglés
| LILACS
| ID: lil-245627
RESUMO
DNA sequence comparison of 412 base-pairs fragments of the mitochondrial cytochrome B gene was used to infer the genetic structure of nine geographical Triatoma infestans populations and their phylogenetic relationship with T. melanosoma and T. brasiliensis. T. infestans and T. melanosoma were compared by morphometry, allozyme and cytogenetic analyses, as well as subjected to reciprocal crosses, in order to clarify the taxonomic status of the latter. No differences were found to distinguish the two species and the crosses between them yielded progeny. T. infestans populations presented four haplotypes that could be separated in two clusters: one formed by the samples from Bolivia (Andes and Chaco) and the other formed by samples from Argentina and Brazil. Silvatic and domestic T. infestans populations from Bolivia (Andes) were genetically identical.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Triatoma
/
Variación Genética
/
ADN Mitocondrial
Límite:
Animales
País/Región como asunto:
America del Sur
/
Argentina
/
Bolivia
/
Brasil
Idioma:
Inglés
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
Medicina Tropical
/
Parasitología
Año:
1999
Tipo del documento:
Artículo
/
Congreso y conferencia
País de afiliación:
Benín
/
Estados Unidos
/
Reino Unido
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