Molecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).

<h4>Background</h4>Lutzomyia longipalpis is the primary vector of American visceral leishmaniasis. There is strong evidence that L. longipalpis is a species complex, but until recently the existence of sibling species among Brazilian populations was considered a controversial issue. In a...

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Autores principales:	Alejandra S Araki, Felipe M Vigoder, Luiz G S R Bauzer, Gabriel E M Ferreira, Nataly A Souza, Izeneide B Araújo, James G C Hamilton, Reginaldo P Brazil, Alexandre A Peixoto
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2009
Materias:	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270
Acceso en línea:	https://doaj.org/article/5eb5df6613c94bcfaabeb25749e55d4d
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spelling	oai:doaj.org-article:5eb5df6613c94bcfaabeb25749e55d4d2021-11-25T06:32:59ZMolecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).1935-27271935-273510.1371/journal.pntd.0000365https://doaj.org/article/5eb5df6613c94bcfaabeb25749e55d4d2009-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19172187/pdf/?tool=EBIhttps://doaj.org/toc/1935-2727https://doaj.org/toc/1935-2735<h4>Background</h4>Lutzomyia longipalpis is the primary vector of American visceral leishmaniasis. There is strong evidence that L. longipalpis is a species complex, but until recently the existence of sibling species among Brazilian populations was considered a controversial issue. In addition, there is still no consensus regarding the number of species occurring in this complex.<h4>Methodology/principal findings</h4>Using period, a gene that controls circadian rhythms and affects interpulse interval periodicity of the male courtship songs in Drosophila melanogaster and close relatives, we analyzed the molecular polymorphism in a number of L. longipalpis samples from different regions in Brazil and compared the results with our previously published data using the same marker. We also studied the male copulation songs and pheromones from some of these populations. The results obtained so far suggest the existence of two main groups of populations in Brazil, one group representing a single species with males producing Burst-type copulation songs and cembrene-1 pheromones; and a second group that is more heterogeneous and probably represents a number of incipient species producing different combinations of Pulse-type songs and pheromones.<h4>Conclusions/significance</h4>Our results reveal a high level of complexity in the divergence and gene-flow among Brazilian populations of the L. longipalpis species complex. This raises important questions concerning the epidemiological consequences of this incipient speciation process.Alejandra S ArakiFelipe M VigoderLuiz G S R BauzerGabriel E M FerreiraGabriel E M FerreiraNataly A SouzaIzeneide B AraújoJames G C HamiltonJames G C HamiltonReginaldo P BrazilAlexandre A PeixotoPublic Library of Science (PLoS)articleArctic medicine. Tropical medicineRC955-962Public aspects of medicineRA1-1270ENPLoS Neglected Tropical Diseases, Vol 3, Iss 1, p e365 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270
spellingShingle	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Alejandra S Araki Felipe M Vigoder Luiz G S R Bauzer Gabriel E M Ferreira Gabriel E M Ferreira Nataly A Souza Izeneide B Araújo James G C Hamilton James G C Hamilton Reginaldo P Brazil Alexandre A Peixoto Molecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).
description	<h4>Background</h4>Lutzomyia longipalpis is the primary vector of American visceral leishmaniasis. There is strong evidence that L. longipalpis is a species complex, but until recently the existence of sibling species among Brazilian populations was considered a controversial issue. In addition, there is still no consensus regarding the number of species occurring in this complex.<h4>Methodology/principal findings</h4>Using period, a gene that controls circadian rhythms and affects interpulse interval periodicity of the male courtship songs in Drosophila melanogaster and close relatives, we analyzed the molecular polymorphism in a number of L. longipalpis samples from different regions in Brazil and compared the results with our previously published data using the same marker. We also studied the male copulation songs and pheromones from some of these populations. The results obtained so far suggest the existence of two main groups of populations in Brazil, one group representing a single species with males producing Burst-type copulation songs and cembrene-1 pheromones; and a second group that is more heterogeneous and probably represents a number of incipient species producing different combinations of Pulse-type songs and pheromones.<h4>Conclusions/significance</h4>Our results reveal a high level of complexity in the divergence and gene-flow among Brazilian populations of the L. longipalpis species complex. This raises important questions concerning the epidemiological consequences of this incipient speciation process.
format	article
author	Alejandra S Araki Felipe M Vigoder Luiz G S R Bauzer Gabriel E M Ferreira Gabriel E M Ferreira Nataly A Souza Izeneide B Araújo James G C Hamilton James G C Hamilton Reginaldo P Brazil Alexandre A Peixoto
author_facet	Alejandra S Araki Felipe M Vigoder Luiz G S R Bauzer Gabriel E M Ferreira Gabriel E M Ferreira Nataly A Souza Izeneide B Araújo James G C Hamilton James G C Hamilton Reginaldo P Brazil Alexandre A Peixoto
author_sort	Alejandra S Araki
title	Molecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).
title_short	Molecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).
title_full	Molecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).
title_fullStr	Molecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).
title_full_unstemmed	Molecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).
title_sort	molecular and behavioral differentiation among brazilian populations of lutzomyia longipalpis (diptera: psychodidae: phlebotominae).
publisher	Public Library of Science (PLoS)
publishDate	2009
url	https://doaj.org/article/5eb5df6613c94bcfaabeb25749e55d4d
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Molecular and behavioral differentiation among Brazilian populations of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).

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