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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: |
RUA Docencia |
Fuente: |
![](http://science-h.com/sh/assets/temas/umad/img/tema/globe.png)
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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 |