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Type: Artigo de periódico
Title: Chemical tools to distinguish the fire ant species Solenopsis invicta. and S. saevissima (Formicidae: Myrmicinae) in Southeast Brazil
Author: Dall'Aglio-Holvorcem, CG
Benson, WW
Gilbert, LE
Trager, JC
Trigo, JR
Abstract: Morphologically similar fire ants Solenopsis invicta and Solenopsis saevissima are broadly sympatric in southeastern Brazil. Chemistry from venom (2,6-dialkyl piperidine alkaloids) and cuticular hydrocarbons have been reported as potentially important tools for differentiating Solenopsis species. We have analysed two chemical classes in widely separated populations of S. invicta and S. saevissima and find that both piperidine alkaloids and cuticular hydrocarbons separate the two species. Piperidine alkaloids clustered S. invicta but not S. saevissima. Cuticular hydrocarbons strongly clustered both S. invicta and S. saevissima. One population morphologically identified as S. invicta presented piperidine alkaloids and cuticular hydrocarbons markedly different from either species. The distinctive piperidine alkaloid differences among populations of S. saevissima and the marked difference in piperidine alkaloid and hydrocarbon profiles of the anomalous population of S. invicta suggest undescribed species fire ant in southeastern Brazil. (C) 2009 Elsevier Ltd. All rights reserved.
Subject: Chemotaxonomy
Cuticular hydrocarbons
Geographic variation
Methyl-branched alkanes
Piperidine alkaloids
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Rights: fechado
Identifier DOI: 10.1016/j.bse.2009.05.017
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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