Breeding potential and genetic diversity of “Híbrido do Breeding potential and genetic diversity of “Híbrido do Timor” coffee evaluated by molecular markers
Tesfahun Alemu Setotaw, Eveline Teixeira Caixeta, Guilherme Ferreira Pena, Eunize Maciel Zambolim, Antonio Alves Pereira and Ney Sussumu Sakiyama
ABSTRACT – AFLP, RAPD and SSR molecular markers were used to study the genetic diversity and genetic structure of the Híbrido 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 Híbrido de Timor accessions. UPGMA and Bayesian cluster analyses grouped the accessions into three clusters. The genetic structure of Híbrido de Timor is reported. The management of Híbrido de Timor germplasm variability and its potential use in breeding programs are discussed.