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Assessment of genetic diversity on a sample of cocoa accessions resistant to witches' broom disease based on RAPD and pedigree data Bragantia
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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