Agritrop
Accueil

Insights into the genome of Musa (banana), a giant herb bearing fleshy fruits : [Abstract W263]

D'Hont Angélique, Piffanelli Pietro, Lescot-David Magali, Town Christopher, Leebens-Mack Jim, Blanc Guillaume, Souza Manoel, Pappas Junior Georgios, Roux Nicolas, Sasaki Takuji. 2009. Insights into the genome of Musa (banana), a giant herb bearing fleshy fruits : [Abstract W263]. In : Abstracts of Plant and Animal Genomes XVII Conference, San Diego, CA (USA), January 10-14, 2009. s.l. : s.n., Résumé Plant and Animal Genomes Conference. 17, San Diego, États-Unis, 10 Janvier 2009/14 Janvier 2009.

Communication sans actes
[img]
Prévisualisation
Version publiée - Anglais
Utilisation soumise à autorisation de l'auteur ou du Cirad.
document_548782.pdf

Télécharger (27kB) | Prévisualisation

Résumé : Musa species, comprising dessert and cooking bananas, represent the fourth most important crop in developing countries. They are monocotyledons of the Musa species, comprising dessert and cooking bananas, represent the fourth most important crop in developing countries. They are monocotyledons of the Zingiberales order and the Musaceae family. We have compared genomic sequence in two Musa species with orthologous regions in the rice genome. We produced 1.4 Mb of Musa sequence from 13 BAC clones, annotated and analyzed them along with 4 previously sequenced BACs. The 443 predicted genes revealed that Zingiberales genes share GC content and distribution characteristics with eudicot and Poaceae genomes. Comparison with rice revealed microsynteny regions that have persisted since the divergence of the Commelinid orders Poales and Zingiberales at least 117 Mya. The previously hypothesized large-scale duplication event in the common ancestor of major cereal lineages within the Poaceae was verified. The divergence time distributions for Musa-Zingiber (Zingiberaceae, Zingiberales) orthologs and paralogs provide strong evidence for a large-scale duplication event in the Musa lineage after its divergence from the Zingiberaceae approximately 61 Mya. Comparisons of genomic regions from M. acuminata and M. balbisiana revealed highly conserved genome structure, and indicated that these genomes diverged circa 4.6 Mya. Further sequencing efforts should be focused first on the A genome of M. acuminata, which has a major contribution to banana and plantain diversity. This will enable: - alignment of the Musa genome in relation to major grasses, including rice and sorghum

Mots-clés Agrovoc : Musa, Poaceae, Oryza

Classification Agris : F30 - Génétique et amélioration des plantes

Auteurs et affiliations

  • D'Hont Angélique, CIRAD-BIOS-UMR DAP (FRA)
  • Piffanelli Pietro
  • Lescot-David Magali
  • Town Christopher, The J. Craig Venter Institute (USA)
  • Leebens-Mack Jim, University of Georgia (USA)
  • Blanc Guillaume, CNRS (FRA)
  • Souza Manoel, EMBRAPA (BRA)
  • Pappas Junior Georgios, UCB (BRA)
  • Roux Nicolas, Bioversity International (FRA)
  • Sasaki Takuji, NIAS (JPN)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/548782/)

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

[ Page générée et mise en cache le 2024-03-28 ]