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Type: Artigo de periódico
Title: Chemical and phylogenetic relationships among Aristolochia L. (Aristolochiaceae) from southeastern Brazil
Author: Silva-Brandao, KL
Solferini, VN
Trigo, JR
Abstract: In this report, a molecular phylogeny based on the plastid gene matK and on the region between the genes trnL and trnF, and a chemical relationship based on the pattern of sesquiterpenes, is proposed for Aristolochia species from southeastern Brazil. We found that Aristolochia is a monophyletic genus and species considered to be derived contain labdanoic acids (LAs) in their leaves. The phenetic relationship recovered with sesquiterpenes did not agree with the phylogenetic relationships for Aristolochia, and three main clusters were recognized, namely, germacrene-D, germacrene-C and Z-caryophyllene groups. The presence of different sesquiterpene structures in species that are phylogenetically closely related may reflect adaptations to avoid predation of herbivores specialized in feeding on Aristolochiaceae plants. (C) 2006 Elsevier Ltd. All fights reserved.
Subject: Aristolochia
aristolochic acids
chemical defence
chemical similarity
labdanoic acids
molecular phylogeny
troidini butterflies
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Citation: Biochemical Systematics And Ecology. Pergamon-elsevier Science Ltd, v. 34, n. 4, n. 291, n. 302, 2006.
Rights: fechado
Identifier DOI: 10.1016/j.bse.2005.10.011
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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