Phylogeny Genetics
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. CARACTERIZAÇÃO MOLECULAR DE LENTIVÍRUS DE PEQUENOS RUMINANTES ISOLADOS NO BRASIL / MOLECULAR CHARACTERIZATION OF Small ruminant lentiviruses ISOLATED IN BRAZIL
CAEV and MVV have been considered genetically distinct but antigenically related as pathogens of goats and sheep, respectively. Moreover, it was demonstrated that these viruses are constantly and easily breaking the barrier between sheep and goats, sheep being infected with CAEV and MVV infecting goats. Like all lentiviruses, the genome of CAEV has a high mu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/12/2011
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2. Transportador ABC e resistência a benznidazol em Trypanosoma cruzi. / ABC transporter and benznidazole resistance in Trypanosoma cruzi.
Ensaios clínicos indicam haver diferenças regionais na eficácia do tratamento da doença de Chagas com (BZ) e Nifurtimox (NFX). Transportadores ABC desempenham um papel importante na resistência a drogas. Evidências indicam que o transportador TcABCG1 é superexpresso em cepas resistentes a BZ. O objetivo geral foi obter evidências para o envolvimento
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/11/2011
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3. Eimeria spp. de coelho e galinha domésticos: desenvolvimento de ensaios moleculares e caracterização filogenética. / Eimeria spp. of domestic rabbit and fowl: development of molecular assays and phylogenetic characterization.
Esse estudo abordou protozoários do gênero Eimeria com dois objetivos gerais: desenvolver ensaios moleculares para a discriminação das onze espécies de Eimeria de coelho e estudar as relações evolutivas Eimeria de hospedeiros mamíferos e aves. Para o primeiro objetivo, seqüenciou-se o ITS1 do rRNA das 11 espécies de Eimeria de coelho e desenhou-se
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/04/2011
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4. Exploitation of mitochondrial nad6 as a complementary marker for studying population variability in Lepidoptera
The applicability of mitochondrial nad6 sequences to studies of DNA and population variability in Lepidoptera was tested in four species of economically important moths and one of wild butterflies. The genetic information so obtained was compared to that of cox1 sequences for two species of Lepidoptera. nad6 primers appropriately amplified all the tested DNA
Genetics and Molecular Biology. Publicado em: 2011
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5. Estudo da estrutura e filogenia da população do Rio de Janeiro através de SNPs do cromossomo Y. / Philogeography study of Rio de Janeiro population using SNPs of Y-Chromosome.
A população brasileira é considerada miscigenada, derivada de um processo relativamente recorrente e recente. Aqui viviam milhões de indígenas quando começou o processo colonizatório envolvendo integrantes europeus, principalmente portugueses do sexo masculino, tornando comum o acasalamento entre homens europeus e mulheres indígenas, começando assim
Publicado em: 2010
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6. Population structure of the Monocelis lineata (Proseriata, Monocelididae) species complex assessed by phylogenetic analysis of the mitochondrial Cytochrome c Oxidase subunit I (COI) gene
Monocelis lineata consists of a complex of sibling species, widespread in the Mediterranean and Atlantic Ocean. Previous genetic analysis placed in evidence at least four sibling species. Nevertheless, this research was not conclusive enough to fully resolve the complex or to infer the phylogeny/phylogeography of the group. We designed specific primers aimin
Genetics and Molecular Biology. Publicado em: 09/10/2009
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7. Vírus Dengue Sorotipo 3 (DENV-3) no Brasil: Estudos sobre Patogenia, Sítios de Replicação, Filogenia e Evolução Molecular / Dengue virus serotype 3 (DENV-3) in Brazil: Studies on Pathogenesis, Replication Sites, Phylogeny and Molecular Evolution
Dengue é uma importante arbovirose (arthropod-borne virus) e constitui um grave problema de saúde pública não só no Brasil, mas também nos países de clima tropical. O Aedes aegypti é o principal vetor dos vírus dengue (DENV) e está presente na maioria dos países entre as latitudes 35N e 35S. Neste trabalho, apresentamos quatro estudos. No primeiro
Publicado em: 2009
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8. 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
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9. O gene da miogenina: sequenciamento em suínos e análise filogenética / The myogenin gene: sequencing in swine and phylogenetic analysis
Meat production capacity is related to muscle fibers number show in newborn animals. The muscle fibers are formed in the myogenesis that takes place during the embryonic development, an event that is controlled in part by the MyoD gene family. The Myogenin gene is a member of this family and rules the expression of muscle specific genes. It has an important
Publicado em: 2005
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10. Ontophyletics of the nervous system: eyeless mutants illustrate how ontogenetic buffer mechanisms channel evolution.
Genetics and molecular biology have shown the mechanisms that allow the genome to provide both the continuity and the variation from generation to generation within a phylogeny. Embryology and developmental biology show the mechanisms that turn the genome into an organism. Mutations, the basis for evolutionary change, cannot in themselves ensure concordance
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11. A Nomenclature System for the Tree of Human Y-Chromosomal Binary Haplogroups
The Y chromosome contains the largest nonrecombining block in the human genome. By virtue of its many polymorphisms, it is now the most informative haplotyping system, with applications in evolutionary studies, forensics, medical genetics, and genealogical reconstruction. However, the emergence of several unrelated and nonsystematic nomenclatures for Y-chrom
Cold Spring Harbor Laboratory Press.
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12. Toward a new synthesis: Major evolutionary trends in the angiosperm fossil record
Angiosperm paleobotany has widened its horizons, incorporated new techniques, developed new databases, and accepted new questions that can now focus on the evolution of the group. The fossil record of early flowering plants is now playing an active role in addressing questions of angiosperm phylogeny, angiosperm origins, and angiosperm radiations. Three
The National Academy of Sciences.