Genome Variations
Mostrando 13-24 de 239 artigos, teses e dissertações.
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13. Evaluation of a nested-pcr for Mycobacterium tuberculosis detection in blood and urine samples
The polymerase chain reaction (PCR) and its variations, such as the nested-PCR, have been described as promising techniques for rapid diagnosis of tuberculosis (TB). With the aim of evaluating the usefulness of a nested-PCR method on samples of blood and urine of patients suspected of tuberculosis we analyzed 192 clinical samples, using as a molecular target
Brazilian Journal of Microbiology. Publicado em: 2011-03
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14. Caracterização citogenética de populações alopátricas do gênero Hoplias (Characiformes, Erythrinidae), com enfoque nos grupos malabaricus e lacerdae
Erythrinidae represents a relatively small family of Neotropical fish, presenting a great geographical distribution. It is composed only by three genera, Hoplias, Hoplerythrinus and Erythrinus. The genus Hoplias is most widespread in the South American continent. Two great groups, H. malabaricus and H. lacerdae are described for the Southeast Brazil, showing
Publicado em: 2010
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15. Mitochondrial genome nucleotide substitution pattern between domesticated silkmoth, Bombyx mori, and its wild ancestors, Chinese Bombyx mandarina and Japanese Bombyx mandarina
Bombyx mori and Bombyx mandarina are morphologically and physiologically similar. In this study, we compared the nucleotide variations in the complete mitochondrial (mt) genomes between the domesticated silkmoth, B. mori, and its wild ancestors, Chinese B. mandarina (ChBm) and Japanese B. mandarina (JaBm). The sequence divergence and transition mutation rati
Genetics and Molecular Biology. Publicado em: 18/12/2009
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16. Genetic changes in grapevine genomes after stress induced by in vitro cultivation, thermotherapy and virus infection, as revealed by AFLP
The Amplification Fragment Length Polymorphism (AFLP) technique was employed to study genetic variations which can be induced in vines by the stress occurring during different aspects of viticulture (in vitro cultivation, in vitro thermotherapy and virus infection). Analysis of AFLP banding patterns, generated by using 15 primer combinations, pointed to negl
Genetics and Molecular Biology. Publicado em: 09/10/2009
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17. AnÃlise in silico de novos potenciais polimorfismos genÃticos de risco na DoenÃa de Alzheimer em bancos de dados de Microarrays
Genomic and Proteomic studies of neurodegenerative disorders require complementary approaches to integrate the massive amount of data generated in high throughput experimental procedures. We propose a Bioinformatics pipeline in which expression studies guide the selection of candidate genes that should be screened for potential new genetic variations from a
Publicado em: 2009
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18. Estudos evolutivos em Myrtaceae : aspectos citotaxonomicos e filogeneticos em Myrteae, enfatizando Psidium e generos relacionados
Myrtaceae is one of the most diverse families in Neotropical region; principally belong to Mata Atlântica and Cerrado, reaching 10 to 15% of biodiversity of these biomes. Myrteae is the most generically tribe (73 genera and 2375 species) in this family. Generally, South-American taxa are considered a complex group and biosystematic studies are necessary to
Publicado em: 2009
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19. Estudos ecogenômicos e bioprospectivos de Shewanella ssp
Bacteria trom Shewanella and Geobacter ganera are the most studied iron-reducing microorganisms particularly due to their electron transport systems and contribution to some industrial and environmental problems, including steel corrosion, bioenergy and bioremediation of petroleum-impacted sites. The present study was focused in two ways: the first is an in
Publicado em: 2009
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20. Obtenção de SNPs, reação do feijoeiro comum à ferrugem da soja e piramidação de genes de resistência a Uromyces appendiculatus / SNP discovery, reaction of the common bean to soybean rust, and pyramiding of resistance genes to Uromyces appendiculatus
Este trabalho apresenta resultados de pesquisas desenvolvidas no âmbito do Programa de Melhoramento do Feijoeiro conduzido na Universidade Federal de Viçosa (UFV), sendo este composto por seções ou subprojetos distintos. Desta forma, optou-se por redigi-lo na forma de artigos científicos, sendo um de revisão e quatro de resultados originais, os quais j
Publicado em: 2009
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21. Association of a locus on rat chromosome 4 with anxiety-related behaviors in two selectively bred rat lines
The Floripa H and L rat lines, selected for high and low locomotion in the central aversive area of an open field, a widely used emotionality test, were proposed as a model for studying the genetic basis of anxiety. The present study aimed to verify if the QTL Ofil1, mapped to rat chromosome 4 and previously identified as being related to emotionality in ano
Genetics and Molecular Biology. Publicado em: 2008-12
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22. Evaluation of polymorphisms of matrix metalloproteinases genes in prostate cancer / Avaliação de polimorfismos dos genes das metaloproteinases da matriz no câncer de próstata
Introduction: Prostate cancer (PCa) is the most frequent tumor in males in Brazil. Research has been directed for the identification of molecular markers that can predict the PCa predisposition and prognosis. Single nucleotide polymorphisms (SNPs) are genome variations, present in a frequency of 1% or more. The matrix metalloproteinases (MMPs) are a family o
Publicado em: 2008
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23. Genotipic variability study of Rhipicephalus sanguineus (Latreille, 1806) (Acari, Ixodidae) from different geografic regions of Brazil. / Estudo da variabilidade genotípica de Rhipicephalus sanguineus (Latreille, 1806) (Acari, Ixodidae) de diferentes regiões geográficas do Brasil
The taxonomic status of ticks of the Rhipicephalus sanguineus group is difficult to be determined by phenotypic methods and has been object of frequent revisions and ongoing debate. The differentiation of species within this group has clinical importance, especially in veterinary medicine due to transmission of different pathogens. The objective of this stud
Publicado em: 2008
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24. Chromosome evolution: Karyotype variability in Platyrrhini and studies of sinteny and homologies between human chromosomes / Evolução cromossômica: estudo da variabilidade cariotípica em Platyrrhini e das homeologias e sintenias com cromossomos humanos
We studied the karyotypes of Brazilian monkeys (Platyrrhini, Primates) using both traditional cytogenetic techniques as well as FISH. FISH analysis employed human probes for chromosome 14, 15 and the X chromosome and a probe of the Y chromosome of Brachyteles arachnoides obtained by chromosome microdissection. Twenty-four individuals of Alouatta guariba clam
Publicado em: 2008