Phylogenetic Trees
Mostrando 13-24 de 369 artigos, teses e dissertações.
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13. First report of recombination in Potato yellow vein virus (PYVV) in Colombia
Potato yellow vein virus (PYVV) is currently one of the most important viruses that infects potatoes in Colombia and other Andean countries, causing losses in the production of tubers ranging from 25% to 50%. This study analyzed the genetic variability of different viral isolates collected in the department of Nariño, Colombia, through bioinformatics analys
Trop. plant pathol.. Publicado em: 2014-06
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14. EF-1α gene and IGS rDNA sequencing of Fusarium oxysporum f. sp. vasinfectum and F. oxysporum f. sp. phaseoli reveals polyphyletic origin of strains
The fungi Fusarium oxysporum f. sp. vasinfectum (Fov) and F. oxysporum f. sp. phaseoli (Fop) are important pathogens that cause wilt on cotton and common bean, respectively. In the present study, phylogenetic trees constructed with partial sequences of the translation elongation factor gene and ribosomal intergenic spacer region of Brazilian Fov and Fop stra
Trop. plant pathol.. Publicado em: 2014-02
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15. Identification of Lactobacillus plantarum, Lactobacillus pentosus and Lactobacillus fermentum from honey stomach of honeybee
This study aimed to isolate and identify Lactobacillus in the honey stomach of honeybee Apis dorsata. Samples of honeybee were collected from A. dorsata colonies in different bee trees and Lactobacillus bacteria isolated from honey stomachs. Ninety two isolates were Gram-stained and tested for catalase reaction. By using bacterial universal primers, the 16S
Braz. J. Microbiol.. Publicado em: 2013-09
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16. Description and phylogenetic position of a new species of Metarthrodes (Opiliones: Gonyleptidae: Caelopyginae) from Bahia, northeastern Brazil
We describe Metarthrodes oxum sp. nov. from Camacan, state of Bahia, Brazil, the second species of Caelopyginae described from the state, after Metarthrodes xango Pinto-da-Rocha, 2002. Metarthrodes oxum sp. nov. can be recognized by the presence of a pair of white spots on area I, white C-shaped stripes on lateral grooves of area III, posterior margin with t
Zoologia (Curitiba). Publicado em: 2013-06
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17. Técnicas de bioinformática aplicadas ao estudo de poligalacturonases de fungos
Plant cell walls are composed of approximately 65% cellulose microfibrils and pectin. The latter is proteolytically degraded by the so-called pectinases enzymes (also known as pectinolytic enzymes). Pectinases may be either depolymerizing. They are produced by plants, filamentous fungi, bacteria, and yeast. Due to the wide commercial use of pectinase, one ha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/04/2012
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18. Desmodus rotundus and Artibeus spp. bats might present distinct rabies virus lineages
In Brazil, bats have been assigned an increasing importance in public health as they are important rabies reservoirs. Phylogenetic studies have shown that rabies virus (RABV) strains from frugivorous bats Artibeus spp. are closely associated to those from the vampire bat Desmodus rotundus, but little is known about the molecular diversity of RABV in Artibeus
Braz J Infect Dis. Publicado em: 2012-12
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19. The phylogeny of Simulium (Chirostilbia) (Diptera: Simuliidae) and perspectives on the systematics of the genus in the Neotropical Region
Recently, knowledge of Neotropical Simuliidae has been accumulating quickly. However, information about supra-specific relationships is scarce and diagnoses of Simulium subgenera are unsatisfactory. To investigate the relationships among Simulium (Chirostilbia) species and test the subgenus monophyly, we performed a cladistic analysis. The ingroup included a
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-03
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20. Sistemática e filogenética molecular do gênero Hexachlamys (Myrtaceae) através do uso de marcadores plastidiais e nucleares
Myrtaceae family includes more than 5500 species of trees and shrubs, mainly distributed in tropical and subtropical areas of the world. Species of this family have great ecological significance in forest ecosystems, and they are also economically important to the pharmaceutical, food, cosmetic and perfumery industries. The systematic of this family is very
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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21. Taxonomia das espécies sul-brasileiras de Calydorea Herbert (Iridaceae) e caracterização por DNA "Barcode"
This study aimed a taxonomic revision of the genus Calydorea from southern Brazil, providing the basis for identification of the species, by means of a dichotomous key, illustrations and images of plants in the natural environment. Another aim was to verify the effectiveness of use of target gene sequences to discriminate species, in the light of the propose
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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22. Variação geográfica de Hylaeamys yunganus (Thomas, 1902) na América do Sul (Rodentia: Sigmodontinae) / Geographic variation and phylogeography of Hylaeamys yunganus (Thomas, 1902) (Rodentia: Sigmodontinae)
Hylaeamys yunganus is a rodent of the Oryzomyini tribe presenting samples distributed through the Amazon rainforests and occupies a wide altitudinal gradient, which extends from sea level up to ca. 2,000m. Information available in the literature suggests that populations of H. yunganus from Venezuela, Colombia, Ecuador, Peru and western Brazil have large bod
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/09/2011
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23. Caracterização in silico e análise da expressão de genes das rotas de biossíntese e sinalização do etileno em frutos de diferentes cultivares de café (coffea arabica) / In silico characterization and expression analysis of genes of the ethylene biosynthesis and signaling pathways in fruits of different coffee (Coffea arabica) cultivars
Coffee is the second most commercialized product in the world posing as an important source of income and jobs in several countries, mainly in developing countries such as Brazil, the largest producer and the second largest consumer of coffee in the world. Coffee quality, among other factors, is directly associated to the fruit ripening stage at harvest time
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/07/2011
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24. Phylogenetic analysis and systematic revision of the genus Anchylohynchus Schoenherr, 1836 (Curculionidae: Derelomini), using discrete and continuous morphological characters / Análise filogenética e revisão sistemática do gênero Anchylorhynchus Schoenherr, 1836 (Curculionidae: Derelomini), com o uso de caracteres morfológicos contínuos e discretos
Recently, phylogenetic analysis based on continuous characters was made accessible. This increases the pool of characters available for morphology-based phylogenetic analyses, but there is still no consensus on how this kind of characters should be coded and analyzed. In the present study, I assessed the use of continuous characters in phylogenies from two d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2011