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Registros recuperados: 5
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Acid phosphatase polymorphism within and among populations of Cauliflower (Brassica oleracea var botrytis) Genet. Mol. Biol.
Marino,Celso Luis; Gimenes,Marcos Aparecido; Silva,Norberto da; Lopes,Catalina Romero.
Eighty-one lines of cauliflower (Brassica oleracea var. botrytis) from 12 populations used to produce commercial hybrids in Brazil were screened for polymorphism in the acid phosphatase system, in order to evaluate the usefulness of this marker for the determination of the parental contamination level in hybrid seeds. Little polymorphism was detected in the examined lines, but the system appeared to be very useful for hybrid identification, since the only condition required was polymorphism between the two parental lines. If the analyzed lines were used for hybrid production, 8.4% and 12.3% of the possible crosses would result in hybrids which can be positively identified using the APS-1 and B1 loci, respectively. If only one plant of each homozygous type...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Isoenzyme; Polymorphism; Cauliflower.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000100015
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Análise cromossômica e molecular do javali europeu Sus scrofa scrofa e do suíno doméstico Sus scrofa domesticus Braz. J. Vet. Res. Anim. Sci.
Gimenez,Danilo Lucano; Mota,Lígia Souza Lima Silveira da; Curi,Rogério Abdallah; Rosa,Guilherme Jordão de Magalhães; Gimenes,Marcos Aparecido; Lopes,Catalina Romero; Lucca,Edmundo José de.
A presente investigação teve como objetivos: analisar animais presentes em diferentes criações de javalis no estado de São Paulo, com o intuito de auxiliar a identificação de javalis "puros" assim como javalis híbridos provenientes do cruzamento com o suíno doméstico, para tanto foram utilizadas avaliação do fenótipo dos animais, análises citogenéticas e da técnica molecular de RAPD (Random Amplified Polymorphic DNA).O estudo do número de cromossomos nas células diplóides em 104 animais destinados a análise citogenética e fenotípica, revelou polimorfismo de 2n=36, 37 e 38 cromossomos. Por meio da técnica de bandamento GTG foi possível identificação da translocação Robertsoniana entre os cromossomos 15 e 17 como responsável por esse polimorfismo. Todavia,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Javali; Híbrido; Citogenética; RAPD; Fenótipos.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962003000200009
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Genetic characterization of isolates of the basidiomycete Agaricus blazei by RAPD BJM
Colauto,Nelson Barros; Dias,Eustáquio Souza; Gimenes,Marcos Aparecido; Eira,Augusto Ferreira da.
The genetic divergence of five isolates of Agaricus blazei was determined based on RAPD data. Results indicate that there is little genetic variability among the commercialized strains and that RAPD is a feasible and low cost technique that can be used to characterize this fungus.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agaricus blazei; Basidiomycete; Genetic diversity; Mushroom; RAPD.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000200006
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Isoenzymatic variation in the germplasm of Brazilian races of maize (Zea mays L.) Genet. Mol. Biol.
Gimenes,Marcos Aparecido; Lopes,Catalina Romero.
There are more than 200 races of maize (Zea mays L.) divided into three groups (ancient commercial races, the recent commercial races, and indigenous races). Although the indigenous races have no commercial value, they have many important characteristics which can be incorporated into maize breeding programs. Most Brazilian indigenous germplasm race stocks were collected at least 40 years ago, and nothing is known of the genetic variability present in this germplasm. The genetic variability was assayed in 15 populations from four indigenous races of maize (Caingang, Entrelaçado, Lenha and Moroti) and five indigenous cultivars, using five isoenzymatic systems encoded by 14 loci. The analysis revealed a low level of variability among the samples studied....
Tipo: Info:eu-repo/semantics/article
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000200023
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Transferability and use of microsatellite markers for the genetic analysis of the germplasm of some Arachis section species of the genus Arachis Genet. Mol. Biol.
Bravo,Juliana Pereira; Hoshino,Andrea Akemi; Angelici,Carla Maria Lara C.D.; Lopes,Catalina Romero; Gimenes,Marcos Aparecido.
The Arachis section is the most important of the nine sections of the genus Arachis because it includes the cultivated peanut, Arachis hypogaea. The genetic improvement of A. hypogaea using wild relatives is at an early stage of development in spite of their potential as sources of genes, including those for disease and pests resistance, that are not found in the A. hypogaea primary gene pool. Section Arachis species germplasm has been collected and maintained in gene banks and its use and effective conservation depends on our knowledge of the genetic variability contained in this material. Microsatellites are routinely used for the analysis of genetic variability because they are highly polymorphic and codominant. The objective of this study was to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic diversity; Germplasm; Peanut; Transferability; Wild species.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000300021
Registros recuperados: 5
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