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Título: Genetic relationships among some species groups within the genus Lutzomyia (Diptera: Psychodidae)
Autores: Torgerson, Dara G.
Lampo, Margarita
Velásquez Zambrano, Yelitza
Woo, Patrick T.K.
Fecha: 2007-11-05
2007-11-05
2003
2003-11
Publicador: The American Society of Tropical Medicine and Hygiene
Fuente: Ver documento
Tipo: info:eu-repo/semantics/article
Tema: Lutzomyia
Diptera
Venezuela
Psychodidae
Cytochrome b
Leishmaniasis
Mitochondrial
DNA
Bioquímica y Biología Molecular
Zoología
Parasitología
Descripción: Molecular data on Lutzomyia are very scarce, despite the fact that this genus includes all the species involved in the transmission of leishmaniasis in America. We examine the genetic relationships among eight morphologic groups within the Lutzomyia genus and two Brumptomyia species, using nine enzyme loci and the last 285 basepairs of the mitochondrial cytochrome b gene. The structure of the genetic variation among the species analyzed indicated a closer genetic relationship among members of a morphologic group than between members of different groups. The lower levels of variation recorded among these groups compared with that between Brumptomyia and Lutzomyia suggest a subgeneric status for all of these groups, including Psychodopygus. A maximum likelihood tree for the allozyme data and a neighbor-joining consensus tree for the mitochondrial DNA sequences showed a general agreement with morphologic groups, with only minor differences. Nyssomyia, Verrucarum and Micropygomyia formed separate monophyletic groups. Lutzomyia could not be separated from Psathyromyia, and both Migonei species, L. dubitans and L. migonei, grouped in different clades according to the host species they are found on.
This study was supported by Consejo Nacional de Investigacions Científicas y Tecnológicas (CONICIT) (No. 96–0001370), the World Health Organization-World Bank (No. 021–007), the Canadian International Development Agency (CIDA), and the Canadian Bureau for International Education (CBIE).
Idioma: Inglés
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