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| Santos,Ronaldo Carvalho dos; Pires,José Luís; Lopes,Uilson Vanderley; Gramacho,Karina Peres G.; Flores,Acassi Batista; Bahia,Rita de Cássia S.; Ramos,Helaine C. Cristine; Corrêa,Ronan Xavier; Ahnert,Dario. |
| Genetic diversity in cocoa (Theobroma cacao L.) has been assessed based on morphological and molecular markers for germplasm management and breeding purposes. Pedigree data is available in cocoa but it has not been used for assessing genetic relatedness. The geneitic diversity of 30 clonal cocoa accessions resistant to witche´ broom disease, from the CEPEC series, were studied on the basis of RAPD data and pedigree information. Twenty of these accessions descend from the TSA-644 clone, originated from a cross between the Upper Amazon germplasm called Scavina-6, the main source of resistance to witches' broom disease, and IMC-67. The ten remaining clones come from different sources including Amazon and Trinitario germplasm. RAPD data was collected using 16... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coefficient of parentage; Molecular markers. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000300005 |
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| Priolli,Regina Helena Geribello; Pinheiro,José Baldin; Zucchi,Maria Imaculada; Bajay,Miklos Maximiliano; Vello,Natal Antonio. |
| In this study, simple sequence repeats (SSR) loci and pedigree data were used to investigate the genetic relationship in a group of 168 Brazilian soybean cultivars. Eighteen SSR loci produced an average of 5.06 alleles and a mean gene diversity of 0.58 for the cultivars studied. Genetic distance (GD) was determined using the modified Roger's Wright distance, and a final dendrogram was in agreement with the cultivar pedigree. A distance matrix based on the coefficient of parentage scores was also generated for the cultivars, which ranged from 0 to 1, with a mean of 0.18, whereas SSR-based genetic similarity (1- GD) ranged from 0.01 to 0.90, with a mean of 0.25. Mantel's Z test showed that the similarity matrices generated from both the data sets were low,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coefficient of parentage; Glycine max (L.) Merr.; Microsatellite markers. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300004 |
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