Gene Pool
Mostrando 25-36 de 618 artigos, teses e dissertações.
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25. Genetic analysis of scattered populations of the Indian eri silkworm, Samia cynthia ricini Donovan: differentiation of subpopulations
Deforestation and exploitation has led to the fragmentation of habitats and scattering of populations of the economically important eri silkworm, Samia cynthia ricini, in north-east India. Genetic analysis of 15 eri populations, using ISSR markers, showed 98% inter-population, and 23% to 58% intra-population polymorphism. Nei's genetic distance between popul
Genetics and Molecular Biology. Publicado em: 29/07/2011
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26. Expressão imunoistoquímica e molecular da laminina-332 cadeia gama-2 em tumores mamários de cadelas
Para avaliar a expressão imunoistoquímica da cadeia γ 2 da laminina-332, foram investigados 48 casos de câncer mamário canino. Comparou-se, por RT-PCR, a expressão gênica nas células tumorais com um pool de tecido mamário. Como teste complementar, em oito amostras tumorais, realizou-se western blot para avaliar a integridade da proteína laminina-33
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2011-02
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27. Genetic map of the common bean using a breeding population derived from the Mesoamerican gene pool.
The mapping population consisted of 94 F 2 generation plants derived from a cross between the CNFC 7812 and CNFC 8056 lines, with different protein contents, 24% and 19% respectively. Seven hundred and fifty-two molecular markers were tested among the parents and four individuals from the segregant population. A total of 101 loci were used to develop the gen
Crop Breeding and Applied Biotechnology. Publicado em: 2011
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28. Avaliação de acessos de abacate nas condições de cerrado de Brasília, DF.
RESUMO: A cultura do abacate (Persea americana Mill), no Bioma Cerrado, apresenta grandes possibilidades uma vez que as condições ecológicas favorecem seu desenvolvimento. É grande a carência de informações sobre o comportamento dessa fruteira na região, no entanto, são encontradas plantas vegetando muito bem, sendo a maioria desse material originá
Planaltina. Publicado em: 2011
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29. Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity.
Brazil is the largest producer and consumer of common bean (Phaseolus vulgaris L.), which is the most important source of human dietary protein in that country. This study assessed the genetic diversity and the structure of a sample of 279 geo-referenced common bean landraces from Brazil, using molecular markers. Sixty-seven microsatellite markers spread ove
Theoretical and Applied Genetics. Publicado em: 2011
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30. IL-2, IL-5, TNF-α and IFN-γ mRNA expression in epidermal keratinocytes of systemic lupus erythematosus skin lesions
OBJECTIVE: To analyze cytokine gene expression in keratinocytes from patients with systemic lupus erythematosus (SLE). INTRODUCTION: Keratinocytes represent 95% of epidermal cells and can secrete several cytokines. METHODS: Keratinocytes were obtained by laser microdissection from 21 patients with SLE (10 discoid and 11 acute lesions) at involved and uninvol
Clinics. Publicado em: 2011
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31. Cloning, expression and characterization of alcohol dehydrogenases in the silkworm Bombyx mori
Alcohol dehydrogenases (ADH) are a class of enzymes that catalyze the reversible oxidation of alcohols to corresponding aldehydes or ketones, by using either nicotinamide adenine dinucleotide (NAD) or nicotinamide adenine dinucleotide phosphate (NADP), as coenzymes. In this study, a short-chain ADH gene was identified in Bombyx mori by 5'-RACE PCR. This is t
Genetics and Molecular Biology. Publicado em: 2011
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32. Base genetica das cultivares de arroz (Oryza sativa L.) irrigado do Brasil.
Foram analisadas as genealogias de 42 cultivares de arroz irrigado recomendadas para cultivo no Brasil, de 1980 a 1992. Verificou-se que apenas dez ancestrais contribuem com 68% do conjunto genico das variedades brasileiras de arroz irrigado. Considerando as cultivares mais plantadas nos principais estados produtores de arroz irrigado, constata-se que sete a
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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33. Mendelian breeding units versus standard sampling strategies: mitochondrial DNA variation in southwest Sardinia
We report a sampling strategy based on Mendelian Breeding Units (MBUs), representing an interbreeding group of individuals sharing a common gene pool. The identification of MBUs is crucial for case-control experimental design in association studies. The aim of this work was to evaluate the possible existence of bias in terms of genetic variability and haplog
Genetics and Molecular Biology. Publicado em: 2011
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34. Extracting samples of high diversity from thematic collections of large gene banks using a genetic-distance based approach.
Background Breeding programs are usually reluctant to evaluate and use germplasm accessions other than the elite materials belonging to their advanced populations. The concept of core collections has been proposed to facilitate the access of potential users to samples of small sizes, representative of the genetic variability contained within the gene pool of
BMC Plant Biology. Publicado em: 2011
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35. Caracterização fisiológica e genética do transporte de arginina em Leishmania (Leishmania) amazonensis / Physiologic and genetic characterization of arginine transport in Leishmania (Leishmania) amazonensis
Protozoan of genus Leishmania are digenetic parasites that present a stage in the life in insect gut (promastigotes) and an intracellular phase (amastigotes) inside vertebrate host macrophages. The study of L-arginine influx consists in an interesting matter, since the amino acid is used on NO production pathway (the main macrophage microbial pathway) but ar
Publicado em: 2011
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36. Importância da via do mevalonato nas neoplasias do córtex adrenal / Importance of mevalonate pathway in adrenocortical tumors
Introdução: A 3-hidroxi-3-metilglutaril coenzima A redutase (HMGCR) é a enzima limitante da via do mevalonato. Esta via, que tem como produto final o colesterol, gera inúmeros subprodutos, como os isoprenóides, essenciais para modificação pós-traducional de várias proteínas envolvidas em proliferação e crescimento celular. Em tecidos esteroidogê
Publicado em: 2011