The saturated map of diploid banana (Musa acuminata)
1997
Noyer, Jean-Louis | Dambier, Dominique | Lanaud, Claire | Lagoda, Pierre
The first saturated map, based on a selfed progeny (89 individuals) from a highly fertile synthetic AA diploid banana cultivar (M53), displaying a BLSD 'resistant' phenotype, is being presented. More than three hundred markers are linked in 11 linkage groups representing the genome (2n=22) of Musa acuminata; Roughly one third of the markers are co-dominant RFLPs (hundred) and microsatellites (thirty). In particular, the efficacy of polymorphic microsatellite markers for mapping the banana genome with rapid and simple methods is pointed out. Two thirds of the markers are dominant AFLPs. Particularities for a mapping job in banana are discussed. Due to acuminata sub-species specific translocations, a sizeable number of markers present high distortion levels. A 'frame-map' based on evenly spaced co-dominant markers is proposed. (Texte intégral)
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