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Molecular phylogeny of the Brazilian endemic genus Orthophytum (Bromelioideae, Bromeliaceae) and its implications on morphological character evolution.
Louzada, Rafael B; Schulte, Katharina; Wanderley, Maria das Graças L; Silvestro, Daniele; Zizka, Georg; Barfuss, Michael H J; Palma-Silva, Clarisse.
Afiliação
  • Louzada RB; Universidade Federal de Pernambuco, Departamento de Botânica, Recife 50670-901, Pernambuco, Brazil. Electronic address: rafael.louzada@ufpe.br.
  • Schulte K; Australian Tropical Herbarium, James Cook University, PO Box 6811, Cairns, QLD 4878, Australia; Centre for Tropical Biodiversity and Climate Change, James Cook University, Discovery Drive, Townsville, QLD 4814, Australia.
  • Wanderley Md; Instituto de Botânica, Secretaria do Meio Ambiente, Avenida Miguel Stéfano 3687, São Paulo 01061-970, São Paulo, Brazil.
  • Silvestro D; Department of Botany and Molecular Evolution, Research Institute Senckenberg and J.W. Goethe University, Frankfurt am Main D-60325, Germany.
  • Zizka G; Department of Botany and Molecular Evolution, Research Institute Senckenberg and J.W. Goethe University, Frankfurt am Main D-60325, Germany.
  • Barfuss MH; Department of Systematic and Evolutionary Botany, Faculty of Life Sciences, University of Vienna, Rennweg 14, 1030 Vienna, Austria.
  • Palma-Silva C; Australian Tropical Herbarium, James Cook University, PO Box 6811, Cairns, QLD 4878, Australia.
Mol Phylogenet Evol ; 77: 54-64, 2014 Aug.
Article em En | MEDLINE | ID: mdl-24657431
The saxicolous genus Orthophytum (∼60 species, Bromeliaceae) is endemic to eastern Brazil and diversified in xeric habitats of the Atlantic Rainforest, Caatinga and campos rupestres. Within the genus, two main groups are discerned based on the presence or absence of a pedunculate inflorescence, which are further subdivided into several morphological subgroups. However, these systematic hypotheses have not yet been tested in a molecular phylogenetic framework. Here we present the first phylogenetic analysis of Orthophytum using nuclear and plastid markers (phytochrome C, and trnH-psbA and trnL-trnF spacers). Forty species representing the two main groups and all subgroups of Orthophytum, and the related genera Cryptanthus (8 spp.) and Lapanthus (2 spp.) were analyzed. The phylogenetic reconstruction revealed a well-supported clade termed Eu-Orthophytum, containing species with pedunculate inflorescences only. The Orthophytum species with sessile inflorescence formed two clades: (1) the amoenum group and (2) the vagans group plus O. foliosum, the only pedunculate Orthophytum species found outside Eu-Orthophytum. The vagans clade is in sister group position to Eu-Orthophytum. Within the latter, the subgroup mello-barretoi was sister to the most diversified clade, termed Core Orthophytum. Morphological character state reconstructions of floral characters used in previous taxonomic treatments as key diagnostic characters (penduncle presence, corolla form, and petal appendage form) showed different levels of homoplasy.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Filogenia / Proteínas de Plantas / Evolução Molecular / Bromeliaceae País/Região como assunto: America do sul / Brasil Idioma: En Revista: Mol Phylogenet Evol Assunto da revista: BIOLOGIA / BIOLOGIA MOLECULAR Ano de publicação: 2014 Tipo de documento: Article País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Filogenia / Proteínas de Plantas / Evolução Molecular / Bromeliaceae País/Região como assunto: America do sul / Brasil Idioma: En Revista: Mol Phylogenet Evol Assunto da revista: BIOLOGIA / BIOLOGIA MOLECULAR Ano de publicação: 2014 Tipo de documento: Article País de publicação: Estados Unidos