« Previous AbstractArtificial Turf: Contested Terrains for Precautionary Public Health with Particular Reference to Europe?    Next AbstractMethodological modifications for accurate and efficient determination of contaminant biodegradation in unsaturated calcareous soils »

Am J Trop Med Hyg

Title:		Male sex pheromones and the phylogeographic structure of the Lutzomyia longipalpis species complex (Diptera: Psychodidae) from Brazil and Venezuela
Author(s):		Watts PC; Hamilton JG; Ward RD; Noyes HA; Souza NA; Kemp SJ; Feliciangeli MD; Brazil R; Maingon RD;
Address:		"School of Biological Sciences, Liverpool University, Liverpool, United Kingdom. p.c.watts@liv.ac.uk"
Journal Title:		Am J Trop Med Hyg
Year:		2005
Volume:		73
Issue:		4
Page Number:		734 - 743
DOI:
ISSN/ISBN:		0002-9637 (Print) 0002-9637 (Linking)
Abstract:		"Lutzomyia longipalpis, a sibling complex, is the main vector of Leishmania chagasi/infantum. Discriminating between siblings is important as they may differ in vectorial capacity. Lutzomyia longipalpis populations display distinct male sex pheromone chemotypes. We investigated the phylogeographic pattern of variation at microsatellite loci from 11 populations from Brazil and Venezuela related to their male pheromone. Temporal genetic differentiation was mostly not significant at the same site. Spatial genetic differentiation was, however, strong, although there was only a weak relationship between genetic differentiation and the geographic distance separating the samples (r2 < 0.10); geographic separation explained a much greater (54-97%) percentage of the genetic differences among populations when samples with the same pheromone type were analyzed separately. A cluster analysis showed five groups: Lu. cruzi (Brazil) and Lu. pseudolongipalpis (Venezuela) as separate species, two (mostly 9-methyl-germacrene-B) Venezuelan and Brazilian groups, and a very distinct cluster of Brazilian cembrene populations"
Keywords:		"Animals Brazil Cluster Analysis Female Genetic Variation Genetics, Population Genotype Geography Male Microsatellite Repeats *Phylogeny Psychodidae/*classification/*genetics/physiology *Sex Attractants/chemistry Species Specificity Venezuela;"
Notes:		"MedlineWatts, Phillip C Hamilton, J Gordon C Ward, Richard D Noyes, Harry A Souza, Nataly A Kemp, Stephen J Feliciangeli, M Dora Brazil, Reginaldo Maingon, Rhayza D C eng Wellcome Trust/United Kingdom Research Support, Non-U.S. Gov't 2005/10/14 Am J Trop Med Hyg. 2005 Oct; 73(4):734-43"