Natural Genetic Variation
Mostrando 13-24 de 377 artigos, teses e dissertações.
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13. Morphoagronomic variation in natural populations of Trifolium riograndense (Burkart) / Variação morfoagronômica em populações naturais de Trifolium riograndense (Burkart)
Várias espécies de Trifolium são extensivamente cultivadas como forragem ou adubo verde. Caracterizaram-se e estimaram-se, por meio de atributos morfológicos e agronômicos, a diversidade genética de populações naturais de T. riograndense, importante leguminosa forrageira nativa dos campos naturais do Rio Grande do Sul. Estatura e diâmetro das planta
Publicado em: 2011
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14. Desempenho produtivo e qualidade da carne de ovinos terminados em pastagem irrigada no semiÃrido nordestino / Productive performance and meat quality of sheep finished in irrigated pasture in the northeastern semi arid
The aim of this study was to evaluate the productive performance and meat quality of animals of Santa InÃs (SI), Somalis Brasileira (SO) and Morada Nova (MN) breeds and  Dorper x  Morada Nova crossbreds (F1) finished in irrigated cultivated pasture. Breeding season was done simultaneously for SI, SO and MN breeds and half of the Morada Nova females was
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/12/2010
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15. Genetic-morphometric variation in Culex quinquefasciatus from Brazil and La Plata, Argentina
Variation among natural populations of Culex (Culex) quinquefasciatus Say is associated with different vectorial capacities. The species Cx. quinquefasciatus is present in the equatorial, tropical and subtropical zones in the Brazilian territory, with intermediate forms between Cx. quinquefasciatus and Culex pipiens occurring in regions of latitudes around 3
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-08
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16. Efeito da progesterona exógena na produção de embriões em novilhas leiteiras / Effect of exogenous progesterone on embryo production in dairy heifers
The reproductive and productive index of dairy cattle in Brazil are below the desirable rates, and, in recent decades, the increase in milk production occurred, partly, more because of the expansion of explored areas and the increase of herds than due to an effective productive increment. The development and application of reproductive biotechnologies are es
Publicado em: 2010
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17. 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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18. Evolução do crânio dos macacos do Velho Mundo: uma abordagem de genética quantitativa / Cranial evolution of Old World monkeys and Apes: a quantitative genetics approach
This is a study on the cranial diversification of the Catarrhini, a large group of primates that includes all Old World monkeys and apes, bringing together two approaches to investigate the evolution of complex characters: quantitative genetics and morphological integration. It has three main goals: 1) to compare magnitudes and patterns of inter-trait relati
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. PARÂMETROS GENÉTICOS POPULACIONAIS COMO INDICADORES DE SUSTENTABILIDADE EM POPULAÇÕES NATURAIS DE PIMENTA ROSA - Schinus terebinthifolius RADDI. (Anacardiaceae) NO BAIXO CURSO DO RIO SÃO FRANCISCO - SE/AL. / POPULATIONAL GENETIC PARAMETERS AS SUSTAINABILITY INDICATORS IN NATURAL POPULATIONS OF RED PEPPER Schinus terebinthifolius RADDI (Anacardiaceae), IN LOW SÃO FRANCISCO RIVER-SE/AL.
The conservation of forest species requires the prior knowledge of genetic parameters belonging to the population, to help to design strategies for this purpose. This study aimed to evaluate genetic parameters and suggest indicators of sustainability in populations of Schinus terebinthifolius Raddi. aiming the conservation and maintenance of diversity in thi
Publicado em: 2009
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21. Study of natural genetic variations of Solanum galapagense possibly related to changes in the hormone gibberellin / Estudo de variações genéticas naturais de Solanum galapagense possivelmente relacionadas com alterações no hormônio giberelina
As espécies selvagens relacionadas ao tomateiro (Lycopersicon esculentum Mill. Syn. Solanum lycopersicum L) em latitudes do Sul do Equador ao norte do Chile. Estas condições ambientais contrastantes possibilitaram o aparecimento de grande diversidade genética dentre estas espécies. Lycopersicon cheesmanii f .minor (Hook.f.) C. H. Hill. Syn. Solanum gala
Publicado em: 2009
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22. Exploring natural genetic variation from wild species related to tomato in the Micro-Tom model (Solanum lycopersicum L. cv Micro-Tom) / Explorando a variação genética natural das espécies selvagens relacionadas ao tomateiro no modelo Micro-Tom (Solanum lycopersicum L. cv Micro-Tom)
Tomato wild species evolved in a wide range of latitudes, from the south of Ecuador to the north of Chile, which comprise different habitats and are a source of natural genetic variation. This diversity is commonly used in tomato breeding, especially for the introgression of genes for resistance to pathogens and, recently, for fruit quality. Although natural
Publicado em: 2008
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23. ESTRUTURA GENÉTICA DE Tibouchina papyrus (Pau-papel) EM ÁREAS NATURAIS DE CAMPO RUPESTRE NO CERRADO
(Genetic structure of Tibouchina papyrus (Pohl) Toledo (pau-papel) in natural areas of Cerrado rupestrian fields). This paper has the aim describe the genetic of variability of Tibouchina papyrus (Pohl) Toledo local populations, from the regions of Serra Dourada and Serra de Pirineus, in Goiás State, Central Brazil. The six RAPD primers generated a total of
Publicado em: 2008
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24. Análise de Impacto do Polimorfismo Genético do Subtipo C do HIV-1 na Interação da Protease Viral com o Inibidor Nelfinavir por Modelagem e Dinâmica Molecular / Analyse the Impact of Genetic Polymorphism of subtype C of HIV-1 Protease Inhibitors in the Interaction Viral With the Inhibitor Nelfinavir by Modeling and Molecular Dynamics
The human immunodeficiency virus (HIV) can be divided into HIV-1 and HIV-2. The former can be divided into groups: M, N and O. Group M, which represents 90% of infections, is divided into several subtypes (A, B, C, D, F, G, H, J and K). It is known today that the most prevalent subtype in the world (and in Africa) is the subtype C, although the most studied
Publicado em: 2008