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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Foundation characteristics of edible Musa triploids revealed from allelic distribution of SSR markers
Annals of Botany, Volume 109, No. 5, Year 2012
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Description
Background and Aims 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 of current popular cultivars (e.g. taste and cooking quality), remains a major challenge for Musa breeders. In this regard, breeders require a sound knowledge of the lineage of the current sterile triploid cultivars, to select diploid parents that are able to transmit desirable traits, together with a breeding strategy ensuring final triploidization and sterility. Highly polymorphic single sequence repeats (SSRs) are valuable markers for investigating phylogenetic relationships. Methods Here, the allelic distribution of each of 22 SSR loci across 561 Musa accessions is analysed. Key Results and Conclusions We determine the closest diploid progenitors of the triploid Cavendish and Gros Michel subgroups, valuable information for breeding programmes. Nevertheless, in establishing the likely monoclonal origin of the main edible triploid banana subgroups (i.e. Cavendish, Plantain and Mutika-Lujugira), we postulated that the huge phenotypic diversity observed within these subgroups did not result from gamete recombination, but rather from epigenetic regulations. This emphasizes the need to investigate the regulatory mechanisms of genome expression on a unique model in the plant kingdom. We also propose experimental standards to compare additional and independent genotyping data for reference. © The Author 2012.
Authors & Co-Authors
Hippolyte, Isabelle
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Jenny, Christophe
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Gardès, Laëtitia
France, Montferrier-sur-lez
Animal, Santé, Territoires, Risques et Ecosystèmes Astre
Bakry, Frédéric
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Rivallan, Ronan
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Pomiès, Virginie
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Cubry, Philippe
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Tomekpé, Kodjo
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
France, Montferrier-sur-lez
Animal, Santé, Territoires, Risques et Ecosystèmes Astre
Cameroon, Douala
Carbap
Risterucci, Ange Marie
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Roux, Nicolás S.
Italy, Rome
Bioversity International
Rouard, Mathieu
Italy, Rome
Bioversity International
Arnaud, Elizabeth
Italy, Rome
Bioversity International
Kolesnikova-Allen, Maria A.
Nigeria, Ibadan
International Institute of Tropical Agriculture
Perrier, Xavier
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Statistics
Citations: 80
Authors: 14
Affiliations: 5
Identifiers
Doi:
10.1093/aob/mcs010
ISSN:
03057364