ANÁLISIS MOLECULAR DE LA DIVERSIDAD GENÉTICA DE FRIJOL COMÚN MANEJADA POR CAMPESINOS EN CUBA 1

Molecular analysis of genetic diversity in Cuban landraces of common bean managed by farmers in Cuba. The genetic variation of 27 common bean landraces (Phaseolus vulgaris L.) collected in La Palma, Pinar del Rio, Cuba, was evaluated using RAPD (Random Amplified Polymorphic DNA) markers and morphologic and agronomic traits. A total of 31 DNA fragments were obtained using 15 RAPD primers (averaging 2.03 per primer). Genetic distances were calculated using Sorensen-Dice's similarity coefficient and displayed in a dendrogram (UPGMA method). A multivariate analysis was also done using evaluations of morphologic and agronomic traits resulting in a dendrogram (Euclidianes distances) and main component analysis. Both RAPD and morphologic and agronomic traits clustered the accessions into two main groups that probably belong to the Mesoamerican and Andean domestication centers considering genetics distances between the groups and differences in some specific morphologic and agronomic traits.