Reproductive isolation between sympatric and allopatric Brazilian populations of Lutzomyia longipalpis s.l. (Diptera: Psychodidae)

Memórias do Instituto Oswaldo Cruz

Nataly A Souza²  Claudia A Andrade-coelho²  Felipe M Vigoder¹  Richard D Ward¹  Alexandre A Peixoto¹ 

[1] ,Laboratório de Transmissores de Leishmanioses

关键词: visceral leishmaniasis;    sand flies;    species complex;    reinforcement;   

DOI  :  10.1590/S0074-02762008000200017

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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