Diversidade genética de clones de bananeira 'Prata-Anã' (AAB) por meio de marcadores SSR

Genetic diversity of 20 'Prata Ana Gorutuba' banana clones, four 'Prata Rio' clones, four 'Prata Catarina' clones and the cultivars Caipira, Thap Maeo, Tropical, Maca and Prata Ana was evaluated by using Single Sequence Repeats markers. Of a total of 19 SSR's primers used 57.8% amplified polymorphic and distinct bands, 26.3% did not amplified specific bands and 15.7% failed the amplification. Two groups were obtained. The first group was formed by triploid cultivar Caipira that contain exclusively the genome A. The second of cultivars and clones originated from natural or artificial hybridization between Musa acuminata and M. balbisiana were grouped in seven subgroups. The cultivars Tropical (AAAB) and Maca (AAB) formed the subgroups II and III, respectively. The subgroups IV, V, VI, and VII were formed by: 'Prata Catarina' clones 1 and 2; 'Prata Rio' clones 1 and 2; 'Prata Catarina' clone 3; 'Prata Gorutuba' clone 12 and 17, 'Prata Catarina' clone 4, Prata Rio clone 4 and the cultivars Thap Maeo and Prata Ana. The subgroup VIII was formed exclusively by Prata Gorutuba clones. The SSR marker was efficient in characterization and discrimination of 'Prata Gorutuba' clones from cultivar Prata Ana.