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Fifty-seven accessions of  Musa  including cultivated clones Of 6 genomic groups (AA, AB, AAA, AAB, ABB, ABBB),  M. balbisiana  (BB),  M. acuminata  ssp.  banksii  (AA),  M. acuminata  ssp.  malaccensis  (AA) and  M. velutina  were examined for random amplified polymorphic DNA (RAPD) genetic markers using PCR with sixty 10-mer random primers. Forty-nine of 60 tested primers gave reproducible DNA amplification patterns. The number of bands resolved per amplification was primer dependent and varied from 1 to a maximum of 24. The size range of the amolification products also differed with the select&amp; primer sequence/genotype and ranged from 0.29 to 3.0 kb. RAPD data were used to generate Jaccard's similarity coefficients which were analyzed phenetically. Phenetic analysis separated clones into distinct groupings that were in agreement with clusterings revealed when data were subsequently analyzed by principal coordinate analysis (PCO). In both the phenetic and the PCO analyses, previously unclassified cultivars grouped with cultivars previously classified for their genomic group based on morphological keys. The implications of RAPD analysis for  Musa  germplasm classification, clonal identification, and management are discussed.

678 PB 186 RAPD GENETIC MARKERS FOR CHARACTERIZATION OF MUSA GENETIC RESOURCES