Breeding potential and genetic diversity of "Hibrido do Timor" coffee evaluated by molecular markers

AFLP, RAPD and SSR molecular markers were used to study the genetic diversity and genetic structure of the Hibrido de Timor germplasm. The principal coordinate analysis, UPGMA cluster analysis based on genetic dissimilarity of Jaccard, Bayesian model-based cluster analysis, percentage of polymorphic loci, Shannon's information index and Nei gene diversity were employed to assess the genetic diversity. The analyses demonstrated a high genetic diversity among Hibrido de Timor accessions. UPGMA and Bayesian cluster analyses grouped the accessions into three clusters. The genetic structure of Hibrido de Timor is reported. The management of Hibrido de Timor germplasm variability and its potential use in breeding programs are discussed.