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	Provedor de dados Naturalis (2) Neotropical Ichthyology (1) Rev. Bras. Bot. (1) Autor BUENO,DALVA MARIA (1) Boero, F. (1) Bouillon, J. (1) Koenemann, Stefan (1) Langeani,Fernanda de Oliveira Martins and Francisco (1) MARIATH,JORGE ERNESTO DE ARAUJO (1) OLIVEIRA,JOÃO MARCELO SANTOS DE (1) Piraino, S. (1) Rosa,Alaina Cristine (1) Schram, Frederick R. (1) Mais... Palavra-chave Heterochrony (4) Ontogeny (2) 42.72 (1) Anacardium occidentale (1) Anther development (1) Anthomedusae (1) Classification (1) Cnidaria (1) Event pairs (1) Freshwater (1) Heteromorphy (1) Hydrozoa (1) Life cycle (1) Miniature (1) Neighbor joining (1) Neotropical region (1) Paedomorphosis. (1) Parsimony (1) Phylogenetic methodology (1) Phylogeny (1) Mais... Tipo do documento Article / Letter to the editor (2) Info:eu-repo/semantics/article (2) Ano 2014 (1) 2002 (1) 2001 (1) 1998 (1) País Brazil (2) Netherlands (2) Idioma Inglês (1) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Desenvolvimento floral e estaminal no clone CP76 de Anacardium occidentale L.: cajueiro-anão precoce (Anacardiaceae) Rev. Bras. Bot. OLIVEIRA,JOÃO MARCELO SANTOS DE; MARIATH,JORGE ERNESTO DE ARAUJO; BUENO,DALVA MARIA. Foram estudados o desenvolvimento floral inicial bem como a ontogênese estaminal em Anacardium occidentale L. As flores apresentam cinco sépalas e cinco pétalas com desenvolvimento helicoidal e unidirecional, respectivamente, androceu com um estame com desenvolvimento heterocrônico e heteromórfico marcante em relação aos nove estames restantes, e um carpelo unilocular terminal. O processo histogênico é idêntico em ambos os tipos de estames. Ao final da ontogênese estaminal, as anteras possuem quatro esporângios, sendo que cada esporângio apresenta epiderme, endotécio, duas camadas médias, tapete e tecido esporogênico. A porção interna do tapete não se origina do conectivo. Tipo: Info:eu-repo/semantics/article Palavras-chave: Anacardium occidentale; Anther development; Single origin of tapetum; Heteromorphy; Heterochrony. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000400003 Heterochrony, generic distinction and phylogeny in the family Hydractiniidae (Hydrozoa: Cnidaria) Naturalis Boero, F.; Bouillon, J.; Piraino, S.. The taxonomy of Hydractinia, Stylactaria and Podocoryna is discussed and the three genera are merged into Hydractinia since their diagnostic characters are liable to lead to polyphyly and paraphyly, due to repeated episodes of medusa reduction via heterochrony (paedomorphosis). The phylogeny of the Hydractiniidae is reconstructed by using two outgroups, Clava and Cytaeis, both having some characters in common with the Hydractiniidae. The resulting phylogenetic trees agree in identifying affinities among Hydractinia, Kinetocodium and Hydrocorella, all with polymorphic colonies with gastrozooids having oral tentacles. The position of Clavactinia (characterized by gastrozooids with widely scattered tentacles) is at the root of the tree if Clava is the... Tipo: Article / Letter to the editor Palavras-chave: Cnidaria; Hydrozoa; Anthomedusae; Phylogeny; Life cycle; Classification; Heterochrony; Paedomorphosis.; 42.72. Ano: 1998 URL: http://www.repository.naturalis.nl/record/317695 Miniaturization in Otothyris Myers, 1927 (Loricariidae: Hypoptopomatinae) Neotropical Ichthyology Rosa,Alaina Cristine; Langeani,Fernanda de Oliveira Martins and Francisco. Many species of freshwater fishes are considered miniatures, nevertheless, their identification as miniatures is frequently based only on an arbitrary criterion of small body size. Although some species of Otothyris had been suggested to be miniature, informations about the process and consequences of miniaturization in the genus are lacking. Here, we detail developmental events of loss, fusion, and modifications in several bones, the laterosensory system, and even the brain, that in sum demonstrate miniaturization in all species of the genus. Our results may be useful in the recognition of other miniature species of loricariids. Tipo: Info:eu-repo/semantics/article Palavras-chave: Freshwater; Heterochrony; Miniature; Neotropical region; Ontogeny. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000100053 The limitations of ontogenetic data in phylogenetic analyses Naturalis Koenemann, Stefan; Schram, Frederick R.. The analysis of consecutive ontogenetic stages, or events, introduces a new class of data to phylogenetic systematics that are distinctly different from traditional morphological characters and molecular sequence data. Ontogenetic event sequences are distinguished by varying degrees of both a collective and linear type of dependence and, therefore, violate the criterion of character independence. We applied different methods of phylogenetic reconstruction to ontogenetic data including maximum parsimony and distance (cluster) analyses. Two different data sets were investigated: (1) four simulated ontogenies with defined phylogenies of six hypothetical taxa, and (2) a set of “real” data comprising sequences of 29 ontogenetic events from 11 vertebrate taxa.... Tipo: Article / Letter to the editor Palavras-chave: Ontogeny; Heterochrony; Event pairs; Vertebrate development; Sequence data; Phylogenetic methodology; Parsimony; Neighbor joining. Ano: 2002 URL: http://www.repository.naturalis.nl/record/534322 Registros recuperados: 4 Primeira ... 1 ... Última

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