Occurrence of sibling species of Lutzomyia longipalpis (Diptera : Psychodidae) in Venezuela: First evidence from reproductively isolated sympatric populations

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dc.contributor.authorLampo, M.
dc.contributor.authorTorgerson, D.
dc.contributor.authorMarquez, L. M.
dc.contributor.authorRinaldi, M.
dc.contributor.authorGarcia, C. Z.
dc.contributor.authorArab, A.
dc.contributor.institutionInst Venezolano Invest Cient
dc.contributor.institutionUniversity of Guelph
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:54:18Z
dc.date.available2014-05-20T13:54:18Z
dc.date.issued1999-12-01
dc.description.abstractThe delimitation of cryptic species within the main vector of the American visceral leishmaniasis, Lutzomyia longipalpis, remains a topic of controversy. An analysis of generic variability based on 8 enzymatic loci revealed fixed differences in 2 diagnostic loci, adenylate kinase (Ak) and hexokinase (Hk), between sympatric and allopatric populations at 4 localities in Venezuela. The absence of heterozygotes for these 2 loci within 1 locality indicates, for the first time, the presence of 2 sympatric reproductively isolated populations or cryptic species within L. longipalpis. Significant differences were also detected between these cryptic species in the allele frequencies of glucose-6-phosphate isomerase (Gpi) and malate dehydrogenase, decarboxylating (Me). One species showed mean heterozygosities that ranged between 6.6% and 6.7%, with 1.6-1.9 alleles detected per locus, while the other had mean heterozygosities that ranged from 4.3% to 6.3%, with 1.3-1.6 alleles per locus. Comparisons of isozyme profiles with published data suggests that 1 species is similar to the L. longipalpis described in Colombian and Brazilian populations, whereas the other has not been previously reported.en
dc.description.affiliationInst Venezolano Invest Cient, Ctr Ecol, Caracas 1020A, Venezuela
dc.description.affiliationUniv Guelph, Dept Zool, Guelph, ON N1G 2W1, Canada
dc.description.affiliationUniv Estadual Paulista, Dept Biol, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Biol, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent1004-1009
dc.identifierhttp://www.ajtmh.org/content/61/6/1004.long
dc.identifier.citationAmerican Journal of Tropical Medicine and Hygiene. Mclean: Amer Soc Trop Med & Hygiene, v. 61, n. 6, p. 1004-1009, 1999.
dc.identifier.issn0002-9637
dc.identifier.urihttp://hdl.handle.net/11449/19397
dc.identifier.wosWOS:000085169200030
dc.language.isoeng
dc.publisherAmer Soc Trop Med & Hygiene
dc.relation.ispartofAmerican Journal of Tropical Medicine and Hygiene
dc.relation.ispartofjcr2.564
dc.relation.ispartofsjr1,430
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleOccurrence of sibling species of Lutzomyia longipalpis (Diptera : Psychodidae) in Venezuela: First evidence from reproductively isolated sympatric populationsen
dc.typeArtigo
dcterms.licensehttp://www.ajtmh.org/site/misc/reprints_permissions.xhtml
dcterms.rightsHolderAmer Soc Trop Med & Hygiene
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Biologia - IBRC