title: Reproductive isolation between sympatric and allopatric Brazilian populations of Lutzomyia longipalpis s.l. (Diptera: Psychodidae).
abstract: Lutzomyia longipalpis s.l., the main vector of Leishmania chagasi in Latin America, is a species complex although the exact number of siblings is yet unknown. In Brazil, the siblings differ in male copulatory courtship songs and pheromones that most certainly act as pre-zygotic reproductive barriers. Here we analysed the reproductive isolation between three allopatric and two sympatric populations of Lu. longipalpis s.l. from Brazil. The results indicate a strong copulatory and pre-mating isolation between the three allopatric populations. In addition, the results also indicate a stronger pre-mating isolation between the two sympatric siblings than between the three allopatric ones, suggesting a role for reinforcement in the speciation of the Lu. longipalpis s.l. complex.
authors.affiliation: Laboratório de Transmissores de Leishmanioses, Instituto Oswaldo Cruz-Fiocruz, AV. Brasil, Rio de Janeiro.
authors.forename: Nataly A
authors.initials: NA
authors.lastname: Souza
authors.forename: Claudia A
authors.initials: CA
authors.lastname: Andrade-Coelho
authors.forename: Felipe M
authors.initials: FM
authors.lastname: Vigoder
authors.forename: Richard D
authors.initials: RD
authors.lastname: Ward
authors.forename: Alexandre A
authors.initials: AA
authors.lastname: Peixoto
mesh_terms: D000818:Animals; D001938:Brazil; D003307:Copulation / Q000502:physiology*; D005260:Female; D008297:Male; D010675:Pheromones / Q000502:physiology; D011576:Psychodidae / Q000502:physiology*; D012098:Reproduction / Q000502:physiology; D014828:Vocalization, Animal / Q000502:physiology
chemical_list: D010675:Pheromones