Genetic Dissimilarity
Mostrando 37-48 de 71 artigos, teses e dissertações.
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37. Resistência a antimicrobianos em Staphylococcus aureus
Multiple antibiotic resistant Staphylococcus aureus represent a big problem in the control of hospital infections. Resistance pattern of isolated S. aureus presented in central vascular catheter of patients interned in the Intensive Therapy Center of the School Hospital of the Universidade Federal do Triângulo Mineiro was evaluated by antimicrobial tests, i
Publicado em: 2008
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38. Seleção assistida e diversidade genética de fontes de resistência ao nematóide de cisto da soja / Assisted selection and genetic diversity of resistance sources to the resistance to soybean cyst nematode
Due to difficulties in the performance of the phenotypic selection for the resistance to the soybean cyst nematode (NCS), the need to implant the marker-assisted selection to this pathogen, and the little knowledge about the genetic diversity of the resistant cultivars developed by the Brazilian breeding programs, the objectives of this work were (1) to use
Publicado em: 2008
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39. Tolerance to salinity available in rice genotypes cultivated in ex vitro and in vitro / Tolerância à salinidade avaliada em genótipos de arroz, cultivados ex vitro e in vitro
As plantas, sob condições naturais, estão expostas a vários estresses ambientais que afetam seu metabolismo. Dentre estes, a salinidade dos solos e da água de irrigação é um dos mais sérios problemas para a agricultura irrigada. Sabendo que o germoplasma do arroz possui uma variabilidade genética para tolerância à salinidade, o objetivo deste tra
Publicado em: 2008
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40. Variabilidade fenotípica dos teores de óleo e proteína de cultivares de soja em diferentes ambientes / Phenotypic variability in the oil and protein contents of cultivars of soybean in different environments
The present work was developed with soybeans genotypes grown in different planting times and different soil types in the agricultural years of 2004/05, 2005/06 and 2006/07 in the municipalities of Viçosa-MG, Frutal-MG and Pindorama-SP respectively. In this work, it was aimed to evaluate the effect of advancing and delaying the harvest on germination and the
Publicado em: 2008
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41. Transference of microsatellite markers from Eucalyptus spp to Acca sellowiana and the successful use of this technique in genetic characterization
The pineapple guava (Acca sellowiana), known in portuguese as the goiabeira-serrana or "Feijoa", is a native fruit tree from southern Brazil and northern Uruguay that has commercial potential due to the quality and unique flavor of its fruits. Knowledge of genetic variability is an important tool in various steps of a breeding program, which can be facilitat
Genetics and Molecular Biology. Publicado em: 2007
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42. Morphological-reproductive characterization of jureminha (Desmanthus virgatus L. (Willd) accessions natives of Sergipe. Sergipe, São Cristóvão, SE, 2007. / CARACTERIZAÇÃO MORFOLÓGICOREPRODUTIVA DE ACESSOS DE JUREMINHA (Desmanthus virgatus (L.) Willd.) NATIVA DE SERGIPE
Among the most representative families of the world flora, the Legumonosae (Fabaceae) is one of most expressive her the capacity in fixing nitrogen in the soil and its releasing for the agroecosystems, presence in many agricultural systems, aggressive characteristic of seed dispersion, and by the considerable forage potential. The present work aimed to chara
Publicado em: 2007
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43. Adaptability of production and molecular analysis, genealogical and morphology of soybeans cultivars / Adaptabilidade de produção e análise molecular, genealógica e morfológica de cultivares de soja
In the improvement programs of soybean the cultivars, before being planted, are evaluated in several places and at least through two years for the decision about its indication be taken. The increases in the registration of new cultivars in Brazil and in the world are obligating researchers to utilize information about the genetic diversity to take the corre
Publicado em: 2007
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44. Rice genetic resources (Oryza sativa L.) in southern Brazil. / Recursos genéticos de arroz (Oryza sativa L.) no sul do Brasil.
A ampla adaptabilidade do arroz, aliada ao continuado esforço da pesquisa no mundo, assegura que o seu grão permaneça sendo um importante produto de consumo pelo homem. A influência da seleção natural resultou em uma ampla diversidade encontrada no gênero Oryza, que, atualmente, é composta por 23 espécies. No entanto, apenas O. sativa L. (arroz cult
Publicado em: 2007
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45. Variability of maize genotypes for grain-carotenoid composition aiming biofortification / Variabilidade de genótipos de milho quanto à composição de carotenóides nos grãos visando a biofortificação
Vitamin A deficiency is the leading cause of blindness in the world, reaching approximately 21% of all the mal nourished children, with the largest number of affected kids in parts of Asia and Africa. Biofortification of the maize with provitamin A carotenoids, through breeding, is an alternative to diminish this deficiency, mainly in poor countries. The mai
Publicado em: 2007
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46. Characterization and genetic diversity analysis of cotton cultivars using microsatellites
Genetic diversity and the relationship between varieties are of great importance for cotton breeding. Our work was designed to estimate the informativeness of the cotton (Gossypium hirsutum L.) simple sequence repeat (SSR) microsatellite locus and to estimate the genetic distance between 53 cotton cultivars as well as to select a set of SSR primers able to d
Genetics and Molecular Biology. Publicado em: 2006
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47. Mapas de ligação e identificação de Locos Controladores de Características Quantitativas (QTLs) associados à resistência a Crinipellis perniciosa em acessos de cacaueiro (Theobroma cacao) originários da Amazônia Brasileira / Linkage Maps and Identification of Quantitative Trait Loci (QTL) associated with resistance to Crinipellis perniciosa in cacao (Theobroma cacao) acessions from the Brazilian Amazon
The witches broom (Crinipellis perniciosa) is the most important disease of cacao in Brazil. The main method of disease control is the use of resistant cultivars, however due to the narrow genetic basis found in commercial cacao growing areas, the resistance is frequently broken. The objectives of this work were: to select new sources of resistance to C. p
Publicado em: 2006
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48. Critérios na escolha de genitores e mecanismos de seleção para caracteres agronômicos nas primeiras gerações em batata (Solanum tuberosum L.) / Critérios na escolha de genitores e mecanismos de seleção para caracteres agronômicos nas primeiras gerações em batata (Solanum tuberosum L.).
The choice of parents and selection strategies when carefully defined and incorporated as usual practice in potato breeding programs, increase their efficiency and versatility. This research was composed of four studies. The work had as the main objective to analyze the use of distance measurements among potato genotypes through genealogy, morphologic and mo
Publicado em: 2006