Molecular Cytogenetics ofMusaSpecies, Cultivars and Hybrids: Location of 18S-5.8 S-25S and 5S rDNA and Telomere-like Sequences (original) (raw)

The physical sites of 18S-5.8 S-25S and 5S rRNA genes and telomeric sequences in theMusaL. genome were localized by fluorescentin situhybridization on mitotic chromosomes of selected lines. A single major intercalary site of the 18S-5.8 S-25S rDNA was observed on the short arm of the nucleolar organizing chromosome in each genome. AA and BB genome diploids had a single pair of sites, triploids had three sites while a tetraploid hybrid had four sites. The probe is useful for quick determination of ploidy, even ...