Reproductive isolation between sympatric and allopatric Brazilian populations of Lutzomyia longipalpis s.l. (Diptera: Psychodidae)
Mem. Inst. Oswaldo Cruz
; 103(2): 216-219, Mar. 2008. graf, tab
Article
de En
| LILACS
| ID: lil-480632
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BR1.1
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.
Mots clés
Texte intégral:
1
Indice:
LILACS
Sujet Principal:
Psychodidae
/
Copulation
Limites du sujet:
Animals
Pays comme sujet:
America do sul
/
Brasil
langue:
En
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
MEDICINA TROPICAL
/
PARASITOLOGIA
Année:
2008
Type:
Article