Agritrop
Accueil

A GCP challenge initiative: Drought tolerance improvement for sorghum in Africa : [Abstract W144]

Rami Jean-François, Témé Niaba, Vaksmann Michel, Lespinasse Denis, Billot Claire, Bouchet Sophie, Hash Charles Tom, Deshpande Santosh, Ramu Punna, Senthilvel S., Upadhyaya Hari D., Weltzien Eva, Rattunde H. Frederick W., Jordan David R., Borrell Andrew, Paterson Andrew H., Kresovich Stephen, Glaszmann Jean-Christophe, Niangado Oumar. 2010. A GCP challenge initiative: Drought tolerance improvement for sorghum in Africa : [Abstract W144]. In : Abstracts of Plant and Animal Genomes XVIIIth Conference, San Diego, CA (USA), January 09-13, 2010. s.l. : s.n., Résumé Plant and Animal Genomes Conference. 18, San Diego, États-Unis, 9 Janvier 2010/13 Janvier 2010.

Communication sans actes
[img] Version publiée - Anglais
Utilisation soumise à autorisation de l'auteur ou du Cirad.
document_555731.pdf

Télécharger (23kB)

Résumé : Sorghum is, together with pearl millet, one of the most important cereals in West Africa. It is the second most important crop in Africa after maize. Sorghum production in West Africa is principally based on traditional, low harvest index cultivars and breeding efforts of the past 40 years have had limited positive impact. At the same time, sorghum with an aligned genome sequence available since 2007, constitutes a model for grass species and is rich of huge resources in terms of genomic tools and information. Building on a five-year effort to characterize worldwide sorghum diversity and develop resources for association mapping studies, several approaches are now explored for integrating molecular tools and approaches into sorghum breeding programs in Mali. This presentation will focus on two approaches developed as part of the GCP challenge initiative "Drought Tolerance Improvement for Sorghum in Africa". The first strategy integrates recent sorghum breeding achievements in Mali and methodologies for marker-assisted recurrent selection (MARS) that provide significant improvement of breeding efficiency for complex traits, as demonstrated in maize. The second, develops a modified nested association mapping (NAM) design exploiting backcross products from a set of elite recurrent parents in combination with several genetically diverse donor parents chosen as sources of cryptic alleles for improvement of productivity and adaptation to prevalent biotic and abiotic stresses. This project will combine an applied component toward the development of new broadened basis varieties with the development of experimental populations with strong genetic resolution and long-term value for identifying marker-trait associations. (Texte intégral)

Mots-clés Agrovoc : Sorghum, résistance à la sécheresse, résistance génétique, amélioration des plantes

Mots-clés géographiques Agrovoc : Mali

Classification Agris : F30 - Génétique et amélioration des plantes
H50 - Troubles divers des plantes

Auteurs et affiliations

  • Rami Jean-François, CIRAD-BIOS-UMR DAP (FRA) ORCID: 0000-0002-5679-3877
  • Témé Niaba, IER (MLI)
  • Vaksmann Michel, CIRAD-BIOS-UPR AIVA (MLI) ORCID: 0000-0002-5258-1279
  • Lespinasse Denis, Syngenta Seeds (FRA)
  • Billot Claire, CIRAD-BIOS-UMR DAP (FRA)
  • Bouchet Sophie
  • Hash Charles Tom, ICRISAT (IND)
  • Deshpande Santosh, ICRISAT (IND)
  • Ramu Punna, ICRISAT (IND)
  • Senthilvel S., ICRISAT (IND)
  • Upadhyaya Hari D., ICRISAT (IND)
  • Weltzien Eva, ICRISAT (MLI)
  • Rattunde H. Frederick W., ICRISAT (MLI)
  • Jordan David R., DPIF (AUS)
  • Borrell Andrew, DPIF (AUS)
  • Paterson Andrew H., University of Georgia (USA)
  • Kresovich Stephen, Cornell University (USA)
  • Glaszmann Jean-Christophe, CIRAD-BIOS-DIR (FRA) ORCID: 0000-0001-9918-875X
  • Niangado Oumar, Fondation Syngenta (MLI)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/555731/)

Voir la notice (accès réservé à Agritrop) Voir la notice (accès réservé à Agritrop)

[ Page générée et mise en cache le 2024-03-23 ]