3 Systematics
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. New initiatives for Brazilian aquatic plant data management
ABSTRACT Initiatives directed at managing information on aquatic plants can support different areas of scientific research, educational practices and political decisions for sustainable management and protection of wetlands and natural resources, as well as reveal knowledge gaps regarding aquatic plants and wetlands. Furthermore, such initiatives can contrib
Acta Bot. Bras.. Publicado em: 29/11/2018
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2. Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil
ABSTRACT Based on molecular data, the tribe Chironieae (Gentianaceae) is divided into three subtribes. This study aims to describe the pollen morphology of representatives of two of the three subtribes that occur in the Atlantic Forest in order to contribute to a better understanding of the palynology of these taxa and to clarify the taxonomy of the family:
Acta Bot. Bras.. Publicado em: 2017-03
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3. Comparative morphology of two species of Caraguata Bechyné (Coleoptera, Chrysomelidae, Galerucinae, Galerucini)
ABSTRACT Caraguata Bechyné, 1954 (Galerucini, Galerucina) includes 38 species exclusively Neotropical, among them two sympatric species, C. atricornis (Clark, 1865) and C. guaporensis Bechyné, 1958. Given the lack of morphological studies in this group, we aimed to characterize the adult morphology of two species, providing descriptions, illustrations and
Iheringia, Sér. Zool.. Publicado em: 12/01/2017
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4. Novel polymerase chain reaction-restriction fragment length polymorphism assay to determine internal transcribed spacer-2 group in the Chagas disease vector, Triatoma dimidiata (Latreille, 1811)
Triatoma dimidiata is the most important Chagas disease insect vector in Central America as this species is primarily responsible for Trypanosoma cruzi transmission to humans, the protozoan parasite that causes Chagas disease. T. dimidiata sensu lato is a genetically diverse assemblage of taxa and effective vector control requires a clear understanding of t
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-06
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5. Estudos moleculares de espécies do gênero Trichogramma Westwood, 1833 (Hymenoptera: Trichogrammatidae) e detecção de Wolbachia spp. (Rickettsiales: Anaplasmataceae).
As espécies de Trichogramma são identificadas por meio da morfologia da genitália do macho, sendo dificultada pelo tamanho reduzido do indivíduo (0,25 mm) e/ou a presença de espécies crípticas. Por esta razão, a biologia molecular se constituí em uma boa alternativa para a identificação de espécies de Trichogramma, sendo também utilizada na iden
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/11/2012
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6. Biogeografia e sistemática dos peixes aulopiformes / Biogeography and systematics of aulopiformes fishes
The Aulopiformes are marine fishes ranging from Early Cretaceous to Recent. Fossil taxa are found in sediments from South and North America, Europe, Asia and Africa. The living forms can be found from shallow coastal estuaries, to the abyssal depths, exceeding 3,000 m. Interrelationships among this group are subject of many studies. The aim of these studies
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2011
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7. Systematics of Croton sect. Cleodora (Euphorbiaceae s.s.) / Sistemática de Croton sect. Cleodora (Euphorbiaceae s.s.)
No presente trabalho foram testados o monofiletismo e relações filogenéticas de Croton sect. Cleodora (Klotzsch) Baill. (Euphorbiaceae s.s.) utilizando-se sequências da região nuclear ITS e das regiões plastidiais trnL-F e trnH-psbA (capítulo 1). Os resultados obtidos demonstraram que a seção, em sua delimitação tradicional, não é monofilética
Publicado em: 2010
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8. Javanella sanfordae, a new cytheridae (crustacea: ostracoda) spcies with a discussion on the validity of the genus Javanella kingma
Javanella sanfordae, uma nova espécie de ostracode da família Cytheridae (Crustacea, Ostracoda), é aqui descrita e ilustrada. Entre os poucos registros fósseis e recentes de Javanella este é o primeiro fora da região do Sudeste Asiático e Austrália. Isso pode indicar que a migração desse gênero para o Atlântico ocorreu antes da elevação do Istm
Publicado em: 2010
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9. A new species of Hyphessobrycon (Teleostei: Characidae) from the upper rio Tocantins drainage, with bony hooks on fins
Uma nova espécie de caracídeo, Hyphessobrycon hamatus é descrita para os tributários do alto rio Tocantins, Goiás, Brasil. A nova espécie distingue-se das demais espécies de Hyphessobrycon pela presença de ganchos nos raios das nadadeiras dorsal, anal, pélvica e peitoral dos machos, duas manchas umerais pretas verticalmente alongadas, 4-5 dentes na
Publicado em: 2010
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10. Sistemática de Paepalanthoideae (Euriocaulaceae): Filogenia, morfologia e taxonomia de Diphyomene (Ruhland) Trovó / Systematics of Paepalanthoideae (Eriocaulaceae): Phylogeny, morphology, and taxonomy of Diphyomene (Ruhland) Trovó
This thesis consists of a phylogenetic study involving Paepalanthoideae, and a morphological, nomenclatural, and taxonomic survey of Paepalanthus sect. Diphyomene. Chapter I is a phylogenetic study of Paepalanthoideae based on morphological and molecular data (nrITS and trnL-trnL). The monophyly of Rondonanthus, as a sister group of the remaining Paepalantho
Publicado em: 2010
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11. Morphological study of the eggs and nymphs of triatoma dimidiata (Latreille, 1811) observed by light and scanning electron microscopy (Hemiptera: Reduviidae: Triatominae)
Eggs and nymphs of Triatoma dimidiata were described using both light and scanning electron microscopy. The egg body and operculum have an exochorion formed by irregular juxtaposed polygonal cells; these cells are without sculpture and the majority of them are hexagonal in shape. The five instars of T. dimidiata can be distinguished from each other by charac
Publicado em: 2010
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12. Taxonomic review and interspecific relationships of Lebiasininae (Ostariophysi: Characiformes: Lebiasinidae) / Revisão taxonômica e relações interespecíficas de Lebiasininae (Ostariophysi: Characiformes: Lebiasinidae)
The subfamily Lebiasininae has been traditionally divided into two genera: Lebiasina and Piabucina. Historically, such division has been contested due to the inconsistency of the diagnostic characters differring both genera. To investigate the relationships among the Lebiasininae and the validity of Lebiasina and Piabucina, 59 representatives of the Lebiasin
Publicado em: 2010