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
Artigo
em Inglês
| 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:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Triatoma
/
Variação Genética
/
DNA Mitocondrial
Limite:
Animais
País/Região como assunto:
América do Sul
/
Argentina
/
Bolívia
/
Brasil
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
1999
Tipo de documento:
Artigo
/
Congresso e conferência
País de afiliação:
Benim
/
Estados Unidos
/
Reino Unido
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