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Med Vet Entomol


Title:Life cycle differences among Brazilian sandflies of the Lutzomyia longipalpis sibling species complex
Author(s):Souza NA; Andrade-Coelho CA; Silva VC; Ward RD; Peixoto AA;
Address:"Laboratorio de Transmissores de Leishmanioses, Instituto Oswaldo Cruz-FIOCRUZ, Rio de Janeiro, Brazil"
Journal Title:Med Vet Entomol
Year:2009
Volume:23
Issue:3
Page Number:287 - 292
DOI: 10.1111/j.1365-2915.2009.00818.x
ISSN/ISBN:1365-2915 (Electronic) 0269-283X (Linking)
Abstract:"The developmental cycles of five Brazilian populations of the Lutzomyia longipalpis Lutz & Neiva species complex (Diptera: Psychodidae) were compared under laboratory conditions. Three of the populations were derived from insects collected in allopatric sites at Natal (Rio Grande do Norte State), Jacobina (Bahia State) and Lapinha Cave (Minas Gerais State). The other two originated from Sobral (Ceara State), where the males of two sympatric species can be distinguished by the presence of one (1S) or two (2S) pairs of abdominal spots. The results of the present study clearly show that all three populations whose males produce C16 pheromones and use pulse-type copulation songs (Jacobina, Lapinha Cave and Sobral 1S) are more easily adapted to the colonization conditions used in our laboratory, producing larger egg batches, with higher survival and an overall faster developmental cycle. This contrasts with populations producing C20 male pheromones and using burst-type copulation songs (Natal and Sobral 2S) that produce smaller egg batches, have higher oviposition mortality and a slower rate of development under identical laboratory conditions. In conclusion, these phenological differences are a further indication of the differentiation of the siblings within the Lu. longipalpis species complex"
Keywords:"Animals Brazil Female Geography Humans Insect Vectors *Life Cycle Stages Male Oviposition Pheromones/physiology Phlebotomus Fever/parasitology Polymorphism, Genetic Psychodidae/genetics/growth & development/*physiology Reproduction/physiology Species Spec;"
Notes:"MedlineSouza, N A Andrade-Coelho, C A Silva, V C Ward, R D Peixoto, A A eng Howard Hughes Medical Institute/ Research Support, Non-U.S. Gov't England 2009/08/29 Med Vet Entomol. 2009 Sep; 23(3):287-92. doi: 10.1111/j.1365-2915.2009.00818.x"

 
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