Microsatellite Repeats
Mostrando 13-24 de 128 artigos, teses e dissertações.
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13. Genetic variability of Brazilian rice landraces determined by SSR markers.
O objetivo deste trabalho foi avaliar a variabilidade genética de variedades locais de arroz (Oryza sativa), coletadas em pequenas propriedades rurais. Doze marcadores microssatélites (SSR) caracterizaram 417 variedades locais, coletadas em 1986, 1987 e 2003, no Estado de Goiás. O número de variedades locais com tipo de grão longo e fino aumentou no int
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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14. Population structures of Brazilian Tall coconut (Cocos nucifera L.) by microsatellite markers
Coconut palms of the Tall group were introduced to Brazil from the Cape Verde Islands in 1553. The present study sought to evaluate the genetic diversity among and within Brazilian Tall coconut populations. Samples were collected of 195 trees from 10 populations. Genetic diversity was accessed by investigating 13 simple sequence repeats (SSR) loci. This prov
Genetics and Molecular Biology. Publicado em: 24/09/2010
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15. Development of microsatellite markers for identifying Brazilian Coffea arabica varieties
Microsatellite markers, also known as SSRs (Simple Sequence Repeats), have proved to be excellent tools for identifying variety and determining genetic relationships. A set of 127 SSR markers was used to analyze genetic similarity in twenty five Coffea arabica varieties. These were composed of nineteen commercially important Brazilians and six interspecific
Genetics and Molecular Biology. Publicado em: 25/06/2010
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16. Three novel polymorphic microsatellite markers for the glaucoma locus GLC1B by datamining tetranucleotide repeats on chromosome 2p12-q12
In order to identify new markers around the glaucoma locus GLC1B as a tool to refine its critical region at 2p11.2-2q11.2, we searched the critical region sequence obtained from the UCSC database for tetranucleotide (GATA)n and (GTCT)n repeats of at least 10 units in length. Three out of four potential microsatellite loci were found to be polymorphic, hetero
Genetics and Molecular Biology. Publicado em: 06/11/2009
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17. Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats
Based on nine microsatellite loci, the aim of this study was to appraise the genetic diversity of 42 cassava ( Manihot esculenta ) landraces from selected regions in Brazil, and examine how this variety is distributed according to origin in several municipalities in the states of Minas Gerais, São Paulo, Mato Grosso do Sul, Amazonas and Mato Grosso. High d
Genetics and Molecular Biology. Publicado em: 17/01/2009
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18. Identification of SHOX gene deletions: comparison of FISH technique, microsatellites analysis and MLPA / Identificação de deleções do gene SHOX: comparação das técnicas de FISH, análise de microssatélites e MLPA
The SHOX gene (short stature homeobox containing gene), expressed at high levels in osteogenic cells, is essential for bone development and growth process. SHOX haploinsufficiency is responsible for several phenotypes involving short stature, such as Turner syndrome, Léri-Weill dyschondrosteosis (LWD) and idiopathic short stature. Deletions are responsible
Publicado em: 2009
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19. Desenvolvimento de microssatelites e analise populacional de especies de Physalaemus do grupo "cuvieri" (Anura, Leiperidae) / Microsatellites development and populational analysis of Physalaemus species of the "cuvieri" group (Anura, Leiperidae)
Even though many amphibian species are among the most endangered animals, the knowledge about their genetic variability and population genetic structure is still limited. In the present work, natural populations of the barker frog Physalaemus cuvieri were analyzed for genetic variability and differentiation using microsatellites, considering its wide geograp
Publicado em: 2009
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20. Caracterização biológica, bioquímica e molecular de isolados de Leishmania spp de diferentes áreas endêmicas do Paraguai. / Biological, biochemical and molecular characterization of isolated of Leishmania spp of different endemic areas of Paraguay.
Visceral leishmaniasis (LV) in Paraguay is a Public Health problem in continuous expansion, since its first autochthon case detected in 1945. Cases of VL in human and canines are being detected for the first time in regions considered non-endemic until recently. Consequently and considering the lack of studies related to the etiological agent of VL or the ci
Publicado em: 2008
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21. The complete mitochondrial genome of the pirarucu (Arapaima gigas, Arapaimidae, Osteoglossiformes)
We sequenced the complete mitochondrial genome of the pirarucu, Arapaima gigas, the largest fish of the Amazon basin, and economically one of the most important species of the region. The total length of the Arapaima gigas mitochondrial genome is 16,433 bp. The mitochondrial genome contains 13 protein-coding genes, two rRNA genes and 22 tRNA genes. Twelve of
Genetics and Molecular Biology. Publicado em: 2008
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22. DNA repetitivo e seu papel na estrutura cromossômica terminal em Rhynchosciara americana (Diptera: Sciaridae) / The role of repetitive DNA in the chromosome termini of Rhynchosciara americana (Diptera: Sciaridae)
The chromosomal localization of ribosomal DNA (rDNA) was studied in polytene and diploid tissues of four sciarid species, Trichosia pubescens, Rhynchosciara americana, R. milleri and Schwenkfeldina sp. While hybridization to mitotic chromosomes showed the existence of a single rDNA locus, ribosomal probes hybridized to more than one polytene chromosome regio
Publicado em: 2008
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23. Estudo dos polimorfismos do HLA e microssatélites na infecção pelo HIV-1/AIDS. / Study of HLA and microsatellite markers polymorphisms in the HIV-1 disease.
[INTRODUÇÃO] Fatores genéticos do hospedeiro podem promover resistência à infecção pelo HIV-1 e o retardo no curso da doença. O polimorfismo do HLA é considerado determinante na infecção do HIV-1 e AIDS. Os genes HLA, localizados na região de classe I do MHC, ganham destaque nos estudos de associação como fortes candidatos à patogenia da AIDS.
Publicado em: 2008
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24. Molecular characterization of alleles-S and of microsatellite locus in Prunus salicina (Lindl.) / Caracterização molecular de alelos-S e de locos microssatélites em Prunus salicina (Lindl.)
A cultura de ameixeira tem papel de destaque na fruticultura mundial. No Brasil, o Estado do Rio Grande do Sul se destaca como maior produtor. Porém, mesmo apresentando elevado potencial de cultivo, alguns fatores têm limitado o aumento da produção, entre eles: a) a variabilidade de clima; b) o uso de porta- enxertos inadequados; c) a incapacidade de aut
Publicado em: 2008