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| Registros recuperados: 441 | |
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| Siqueira,Marcos Vinicius Bohrer Monteiro; Borges,Aline; Valle,Teresa Losada; Veasey,Elizabeth Ann. |
| This study was carried out in order to assess the genetic diversity of 20 cassava (Manihot esculenta Crantz) genotypes with high phenotypic performance using microsatellite markers. Two groups were considered for this study: eleven varieties for industrial uses and nine for household consumption. By using nine microsatellite primers, high polymorphism was identified in all the loci analyzed, with values reaching 100%. On average, 3.4 alleles per locus were found, with 0.371 the value estimated for the observed heterozygosity and 0.555 for gene diversity for the entire set of varieties. The genetic variability found in both varieties, cultivated on a large-scale in the South Center region of Brazil, is wide enough to allow the choice of divergent parental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta; Genetic diversity; Germplasm; Microsatellites. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000400003 |
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| Gomes,Regina Lucia Ferreira; Costa,Marcones Ferreira; Alves-Pereira,Alessandro; Bajay,Miklos Maximiliano; Viana,João Paulo Gomes; Valente,Sérgio Emílio dos Santos; Lopes,Ângela Celis de Almeida; Zucchi,Maria Imaculada; Pinheiro,José Baldin. |
| ABSTRACT Some germplasm collections have a high number of accessions, which makes it difficult to explore the genetic variability present in the germplasm bank due to the redundancy and the difficulty of detailed analysis of all conserved accessions. Therefore, our study aimed to analyze the genetic diversity of 153 lima bean (Phaseolus lunatus) accessions for the purpose of constructing a core collection. Eleven SSRs were used for this purpose. The 153 lima bean accessions can be represented by low redundancy using a minimum of 34 accessions, thus representing 22 % of the size of the entire germplasm bank. The core collection had a higher Shannon diversity index and expected heterozygosity (1.906 and 0.811, respectively) than those presented by the entire... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Germplasm; Genetic diversity; Genetic structure; Microsatellite markers. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000201100 |
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| PARENTONI, S. N.; GAMA, E. E. G.; SANTOS, M. X.; LOPES, M. A.; ALVES, V. M. C.; BAHIA FILHO, A. F. C.; VASCONCELOS, C. A.; MAGNAVACA, R.; PACHECO, C. A.; MEIRELLES, W. F.; GUIMARAES, P. E. O.; SILVA, A. E. da; NASPOLINI FILHO, W.; MORO, J. R.; VIANA, R. T.; PITTA, G. V. E.; FRANCA, G. E.; PURCINO, A. A. C.; SOUZA, I. R. P.; MARRIEL, I. E.; MACHADO, A. T.; CORREA, L. A.; OLIVEIRA, A. C.; PAIVA, E.. |
| 1999 |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Milho; Solo acido; Aluminio; Tolerancia; Toxidez; Cerrado; Variabilidade genetica; Germoplasmma; Estresse; Fosforo; Nitrogenio; Zea mays; Maize; Acid soil; Aluminium; Tolerance; Toxicity; Savanna; Genetic variability; Germplasm; Nitrogen; Phosphorus; Stress. |
| Ano: 1999 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/483417 |
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| Pandey, S.; Kumar, S.; Rai, M.; Mishra, U.; Singh, M.. |
| Thirty four (9 cultivars and 25 germplasm) genotypes of ash gourd (Benincasa hispida) have been studied to assess the molecular diversity using RAPD markers. A total of 25 RAPD markers produced 163 amplicons, of which 73 % were found polymorphic indicating a high degree of diversity. RAPD based dendrogram showed dissimilarity values from 0.64 to 0.943 also suggesting that the accessions represent a genetically diverse population. The accession IVAG-223 was clearly separated from rest of the accessions based on the RAPD primers. The dendogram revealed that the accessions from northeastern regions of India are different from the accessions of other parts of India, as they cluster together. On the basis of clustering, it was indicated that cultivars had a... |
| Tipo: Conference Paper |
Palavras-chave: Genetic resources; Genetic diversity; Dendrogram; PCR amplification; Germplasm; Molecular diversity. |
| Ano: 2008 |
URL: http://hdl.handle.net/2174/193 |
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| Singh,Atul; Singh,Pratap; Tiwari,A K; Sharma,B L. |
| ABSTRACT Red rot, caused by Colletotrichum falcatum Went is the most important disease of sugarcane in India inflicting substantial loss to both cane industry and cane growers. To keep in view the importance of red rot disease of sugarcane, 117 accession of sugarcane germplasm including different Saccharum species and Indian and foreign commercial hybrids were tested against red rot with Cf 07, Cf 08 & Cf 09 (national pathotypes) by plug method of inoculation. Out of 117, 6 were found resistant and 12 were moderately resistant against red rot and rest were moderately susceptible/susceptible/highly susceptible. Theses resistance and moderately resistant accession can be further utilize to produce resistance varieties against the most devastating... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sugarcane; Germplasm; Resistance; Red rot; Plug method. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100203 |
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| NETTO, D. A. M.; SOUZA, I. R. P. de; OLIVEIRA, A. C. de; PINTO, C.A.B.P.; ANDRADE, R.V. de.. |
| Coleção núcleo é uma subamostra de acessos, composta por 10% da coleção ativa de germoplasma e representatividade de, pelo menos, 70% da diversidade genética. A eficiência de utilização dos acessos de germoplasma de milho que compõem a coleção núcleo pode ser incrementada ao se agregar valores de caracterização morfo-agronômica e molecular, fornecendo informações mais detalhadas sobre esses acessos. Este trabalho teve por objetivo valorar a coleção núcleo de milho, subgrupo endosperma duro da Embrapa Milho e Sorgo, por meio de descritores morfo-agronômicos e marcadores moleculares AFLP. Para isso, utilizaram-se 58 acessos, para os quais foram avaliados 32 caracteres morfo-agronômicos e seis combinações de primers AFLP para obtenção dos perfis genéticos. Os... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Germoplasma; Caracterizacao; AFLP; Diversidade genetica; Germplasm; Morpho-agronomical; Characterization; Genetic diversity. |
| Ano: 2004 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/487786 |
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| Registros recuperados: 441 | |
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