Genetic variability of Passiflora spp. from commercial fields in the Federal District, Brazil

• Autor(a) principal: Castro,Ana Paula Gomes de
• Data de Publicação: 2011
• Outros Autores: Faleiro,Fábio Gelape, Carvalho,Daniel Diego Costa, Fonseca,Kenia Gracielle da, Vilela,Marina de Fátima, Junqueira,Nilton Tadeu Vilela, Cares,Juvenil Enrique
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Ciência Rural
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000600013
• topic: diversity; passion fruit; plant breeding; RAPD analysis

This study aimed to characterize the genetic variability in commercial accessions of passion fruit from the Federal District, Brazil, by RAPD markers. Genetic analyses were done with leaf samples of 30 accessions. DNA samples were amplified by RAPD technique, and respective markers converted into a binary matrix, from which the genetic distances between the accessions were estimated. Clustering analyis based on genetic distances allowed to detect a wide range of genetic variabillity among the accessions of sour passion fruit, and to separate them from the two sweet passion fruit. The graphical positioning of 'BRS Ouro Vermelho' confirms its potential to improve the genetic variability of commercial varieties of sour passion fruit. Dispersal of genetic distances among commercial accessions of sour passion fruit supports evidence for different genetic origins of the materials planted in the Federal District. The verified genetic variability indicates the potential success of future breeding programs for this region.