| Author | Pires, Herton Helder Rocha | |
| Author | Barbosa, Sílvia Ermelinda | |
| Author | Borges, Erika Carime | |
| Author | Silva, Juliana A. | |
| Author | Siqueira, Ariovaldo Moura | |
| Author | Diotaiuti, Liléia Gonçalves | |
| Access date | 2015-08-28T12:32:57Z | |
| Available date | 2015-08-28T12:32:57Z | |
| Document date | 2011 | |
| Citation | PIRES, Herton Helder Rocha et al. Head morphometry and isoenzymatic profile of two Triatoma infestans Klug, 1834 (Hemiptera, Reduviidae) populations. Acta Tropica, v. 118, n. 3, p. 190-195, 2011. | pt_BR |
| ISSN | 0001-706X | |
| URI | https://www.arca.fiocruz.br/handle/icict/11662 | |
| Language | eng | pt_BR |
| Publisher | Elsevier Ltd. | pt_BR |
| Rights | restricted access | pt_BR |
| Title | Head morphometry and isoenzymatic profile of two Triatoma infestans Klug, 1834 (Hemiptera, Reduviidae) populations | pt_BR |
| Type | Article | |
| DOI | 10.1016/j.actatropica.2009.07.023 | |
| Abstract | The triatomine bug Triatoma infestans was probably originated in Bolivia and dispersed passively over large areas of South America, where it is the major vector of Trypanosoma cruzi. In its probable origin area this species shows two different patterns of behaviour, being found both in sylvatic and human related habitats. Such behaviour is not observed in other areas of its distribution, where it is exclusive to human related habitats. The main objective of the present study was to evaluate head morphometry characters and isoenzymes patterns of two T. infestans populations, one collected in Minas Gerais (Brazil) and other in the Cochabamba Valley (Bolivia), in order to elucidate the factors that could have an implication with the different colonization behaviour. The two populations presented differences in both morphometric (head size) and isoenzymes (specially PGM enzyme profile). The insects from the colonies reared for several years in laboratory conditions, showed reduction in head size starting from the third generation, maintaining this same size in all generations after, until 10 years after generation. The laboratory rearing conditions could be similar to human associated habitats, inducing certain level of genetic homogeneity. Our results showed increase of genetic homogeneity in Brazilian and laboratory-reared colonies from Bolivia, that may be due to a selection process due to passive dispersion, followed by several founder effects episodes and genetic drift. | pt_BR |
| Affilliation | Universidade Federal dos Vales do Jequitinhonha e Mucuri. Departamento de Farmácia. Laboratório de Doenças Parasitárias. Diamantina, MG, Brazil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Pesquisa René Rachou. Laboratório de Triatomíneos e Epidemiologia da Doença de Chagas. Belo Horizonte, MG, Brazil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Pesquisa René Rachou. Laboratório de Triatomíneos e Epidemiologia da Doença de Chagas. Belo Horizonte, MG, Brazil / Universidade Federal de Ouro Preto. Departamento de Biodiversidade, Evolução, Genética e Educação. Instituto de Ciências Biológicas e Exatas. Ouro Preto, MG, Brazil. | pt_BR |
| Affilliation | Universidade Federal de Minas Gerais. Departamento de Bioquímica e Imunologia. Laboratório de Genética Molecular e de Populações. Belo Horizonte, MG, Brazil. | pt_BR |
| Affilliation | Universidade Federal de Minas Gerais. Departamento de Bioquímica e Imunologia. Laboratório de Genética Molecular e de Populações. Belo Horizonte, MG, Brazil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Pesquisa René Rachou. Laboratório de Triatomíneos e Epidemiologia da Doença de Chagas. Belo Horizonte, MG, Brazil. | pt_BR |
| Subject | Triatoma infestans | pt_BR |
| Subject | Chagas disease | pt_BR |
| Subject | Head morphometry | pt_BR |
| Subject | Biological characterization | pt_BR |
| Subject | Isoenzymatic studies | pt_BR |
