Foundation characteristics of edible Musa triploids revealed from allelic distribution of SSR markers

• DOI: 10.1093/aob/mcs010
• Publication Date: 2012-02-10T03:20:00Z
• Authors: I. Hippolyte; C. Jenny; L. Gardes; F. Bakry; R. Rivallan; V. Pomies; P. Cubry; K. Tomekpe; A. M. Risterucci; N. Roux; M. Rouard; E. Arnaud; M. Kolesnikova-Allen; X. Perrier
• Keywords: 0301 basic medicine; microsatellite; triploidy; DNA, Plant; Genotype; http://aims.fao.org/aos/agrovoc/c_1229; triploïdie; marqueur génétique; http://aims.fao.org/aos/agrovoc/c_3406; Breeding; phylogeny; Musa acuminata; F30 - Génétique et amélioration des plantes; Polyploidy; 03 medical and health sciences; musa acuminata; Gene Frequency; Species Specificity; Musa (plantains); phylogénie; http://aims.fao.org/aos/agrovoc/c_3081; http://aims.fao.org/aos/agrovoc/c_5182; http://aims.fao.org/aos/agrovoc/c_4995; http://aims.fao.org/aos/agrovoc/c_13325; http://aims.fao.org/aos/agrovoc/c_4994; polyploidy; Alleles; Phylogeny; http://aims.fao.org/aos/agrovoc/c_34326; 2. Zero hunger; http://aims.fao.org/aos/agrovoc/c_29127; Polymorphism, Genetic; http://aims.fao.org/aos/agrovoc/c_24030; Musa balbisiana; génétique des populations; Musa; Original Articles; http://aims.fao.org/aos/agrovoc/c_7939; Triploidy; musa balbisiana; http://aims.fao.org/aos/agrovoc/c_36574; musa; Genome, Plant; Microsatellite Repeats

The production of triploid banana and plantain (Musa spp.) cultivars with improved characteristics (e.g. greater disease resistance or higher yield), while still preserving the main features current popular taste cooking quality), remains a major challenge for Musa breeders. In this regard, breeders require sound knowledge lineage sterile cultivars, to select diploid parents that are able transmit desirable traits, together breeding strategy ensuring final triploidization sterility. Highly polymorphic single sequence repeats (SSRs) valuable markers investigating phylogenetic relationships. Here, allelic distribution each 22 SSR loci across 561 accessions is analysed. We determine closest progenitors 'Cavendish' 'Gros Michel' subgroups, information programmes. Nevertheless, in establishing likely monoclonal origin edible subgroups (i.e. 'Cavendish', 'Plantain' 'Mutika-Lujugira'), we postulated huge phenotypic diversity observed within these did not result from gamete recombination, but rather epigenetic regulations. This emphasizes need investigate regulatory mechanisms genome expression on unique model plant kingdom. also propose experimental standards compare additional independent genotyping data reference.