Phylogenetics Analysis
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Multiloci analyses suggest synonymy among Rhomboplites, Ocyurus and Lutjanus and reveal the phylogenetic position of Lutjanus alexandrei (Lutjanidae: Perciformes)
RESUMO A Família Lutjanidae compreende 21 gêneros e 135 espécies, distribuídas ao longo dos oceanos Atlântico, Índico e Pacífico. As relações filogenéticas dos Lutjaninae são incertas. Além disso, a espécie Lutjanus alexandrei, endêmica da costa nordeste do Brasil, não foi inclusa em nenhuma hipótese filogenética até o presente. Assim, real
Neotrop. ichthyol.. Publicado em: 29/04/2019
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2. Scapteromys aquaticus (Rodentia: Sigmodontinae) in Brazil with comments on karyotype and phylogenetics relationships
The swamp rats are distributed in Argentina, southern Paraguay, Uruguay and southern Brazil, with two species currently accepted: Scapteromys aquaticus Thomas, 1920 and Scapteromys tumidus Waterhouse, 1837. While S. aquaticus occurs in Argentina, Paraguay and western Uruguay, S. tumidus occurs in Brazil and Uruguay. Here we report for the first time the occu
Zoologia (Curitiba). Publicado em: 2013-04
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3. Aegla platensis: UM COMPLEXO DE ESPÉCIES? EVIDÊNCIAS A PARTIR DO GENE MITOCONDRIAL COI / Aegla platensis: a species complex? Evidences from the mitochondrial gene COI
Os eglídeos há muito tempo despertam o interesse dos pesquisadores, pois são os únicos representantes da Infraordem Anomura que ocorrem em águas continentais. Ademais são endêmicos da região tropical/temperada da América do Sul, onde são comumente encontrados. A família Aeglidae compreende cerca de 70 espécies descritas até o momento, destas, ap
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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4. Estudos morfológicos e filogenéticos de Sebastiania Spreng. (Hippomaneae, Euphorbiaceae). / Morphological and phylogenetics studies at Sebastiania Spreng. (Hippomaneae, Euphorbiaceae).
Hippomaneae (Euphorbiaceae) has 33 genera standing out Sebastiania including about 25 species. Sebastiania is a promising group to realize a phylogenetical studies, because of the representativeness in the Brazilian flora, morphological complexity, imprecise specific composition and because is polyphyletic. The aims of this work were understand Sebastiania c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/02/2011
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5. Guazuma ulmifolia (Sterculiaceae), a new natural host of 16SrXV phytoplasma in Costa Rica
Guacimo trees (Guazuma ulmifolia, Sterculiaceae) showing witches' broom symptoms (GWB), small leaves, short internodes, stunting and no flower and fruit production were observed on side roads and fences in different areas of Costa Rica. The occurrence of phytoplasma infection in GWB trees was evaluated by transmission electron microscopy (TEM), and by molecu
Tropical Plant Pathology. Publicado em: 2011-04
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6. Revisão e análise filogenética de Armitermes Wasmann, 1897 (Isoptera,Termitidae, Nasutitermitinae) / Revision and phylogenetic analysis of Armitermes Wasmann, 1897 (Isoptera, Termitidae, Nasutitermitinae)
O presente trabalho trata da revisão taxonômica e análise filogenética do gênero Armitermes Wasman, 1897 (Termitidae, Nasutitermitinae), que até esta revisão contava com 12 espécies: A. armiger, A. cerradoensis, A. euamignathus, A. gnomus, A grandidens, A. holmgreni, A. lane, A. manni, A. minutus, A. peruanus, A. projectidens e A. teevani, ocorrendo
Publicado em: 2011
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7. Considerações filogenéticas e taxonômicas na tribo Hureae Dumort. (Euphorbioideae- Euphorbiaceae) / Phylogenetics and taxonomics considerations of the tribe Hureae (Euphorbioideae-Euphorbiaceae).
Euphorbiaceae s.s., with five subfamilies and about 6.300 tropical and subtropical species, is one of the most complex and diversified angiosperm lines. Under a phylogenetic perspective, the approaches concerning the family are scarce and restricted to the highest levels. Among the Euphorbiaceae subfamilies, Euphorbioideae is prominent since it aggregates th
Publicado em: 2010
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8. História Evolutiva do HIV-1 no Brasil
Characterizing the different HIV-1 subtypes prevalent in a geographic region as well as understanding the origin and dissemination of these subtypes are essential to define prevention and intervention strategies targeting local HIV/AIDS epidemics. The present study analyzed 895 pol sequences, available at GenBank, aiming to describe the main HIV-1 subtypes p
Publicado em: 2010
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9. Estudo citogenetico e das relações filogeneticas de Engystomops petersi e Engystomops sp. (Anura, Leiuperidae) / Cytogenetics and phylogenetics studies of Engystomops petersi and Engystomops sp. (Anura, Leiuperidae)
The frog Engystomops petersi is widely distributed in the Amazon basin. Genetic divergence and speciation mechanisms of E. petersi populations have been inferred mainly from mitochondria DNA (mtDNA) and microsatellite polymorphisms, male advertisement call and sexual selection. In spite of the significant progress resulting from these studies, many cytogenet
Publicado em: 2009
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10. General trends in world biogeographic literature: a preliminary bibliometric analysis
Records with the search string biogeograph* were collected from the Science Citation Index (SCI). A total of 3456 records were downloaded for the 1945-2006 period from titles of articles and reviews, and 10,543 records were downloaded for 1991-2006, taking into consideration also abstracts and keywords. Temporal trends of publications, geographical and insti
Revista Brasileira de Entomologia. Publicado em: 2008
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11. Trypanossoma cruzi: diversity, phylogenetics analysis and ecogeographic patterns of wild isolates. / Trypanosoma cruzi: diversidade, relações filogenéticas e padrões ecogeográficos de isolados silvestres.
T. cruzi comprises highly heterogeneous populations classified as TCI and TCIIa-e lineages. This study characterized large wild mammal and vector strains of various geographical origins, and human isolates from Amazonia. Phylogenetic analysis using SSU rDNA and Cyb genes inferred relationships among lineages and their biogeographic patterns. ITS1 rDNA and RA
Publicado em: 2008
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12. Taxonomia e diversidade genética de rizóbios microssimbiontes de distintas leguminosas com base na análise polifásica (Box-PCR e 16 S RNAr) e na metodologia de MLSA
The term rhizobia is generically applied to bacteria capable of fixing the atmospheric nitrogen (N2) and converting it to a form assimilable by the plant, when in symbiosis with plants of the Leguminosae family. However, besides their ecological and economic importance, the rhizobia have not been subject of many studies. Based on the data obtained with t
Publicado em: 2008