Molecular analysis of an odorant-binding protein gene in two sympatric species of Lutzomyia longipalpis s.l.
AUTOR(ES)
Dias, Ana Karina Kerche, Bauzer, Luiz Guilherme Soares da Rocha, Dias, Denise Borges dos Santos, Peixoto, Alexandre Afranio
FONTE
Mem. Inst. Oswaldo Cruz
DATA DE PUBLICAÇÃO
2013
RESUMO
Lutzomyia longipalpis s.l. is the main vector of American visceral leishmaniasis (AVL) and occurs as a species complex. DNA samples from two Brazilian sympatric species that differ in pheromone and courtship song production were used to analyse molecular polymorphisms in an odorant-binding protein ( obp29 ) gene. OBPs are proteins related to olfaction and are involved in activities fundamental to survival, such as foraging, mating and choice of oviposition site. In this study, the marker obp29 was found to be highly polymorphic in Lu. longipalpis s.l. , with no fixed differences observed between the two species. A pairwise fixation index test indicated a moderate level of genetic differentiation between the samples analysed.
Documentos Relacionados
- Reproductive isolation between sympatric and allopatric Brazilian populations of Lutzomyia longipalpis s.l. (Diptera: Psychodidae)
- Genome-Wide Analysis of the Odorant-Binding Protein Gene Family in Drosophila melanogaster
- Odorant-binding protein: localization to nasal glands and secretions.
- Effect of Leishmania spp infection on the survival, life expectancy, fecundity and fertility of Lutzomyia longipalpis s.l. and Lutzomyia pseudolongipalpis
- Odorant-binding protein and its mRNA are localized to lateral nasal gland implying a carrier function.