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A story of flasks and flowers: new perspectives in the search for markers of the mantled somaclonal variation of oil palm [W552]

Jaligot Estelle, Wei Yeng Hooi, Richaud Frédérique, Agbessi Mawussé D.T., Yen Yen Kwan, Beulé Thierry, Collin Myriam, Debladis Emilie, Sabot François, Garsmeur Olivier, D'Hont Angélique, Alwee Sharifah Shahrul Rabiah Syed, Rival Alain. 2015. A story of flasks and flowers: new perspectives in the search for markers of the mantled somaclonal variation of oil palm [W552]. In : Plant and Animal Genomes Conference XXIII Conference, San diego, United States, San Diego, United States, January 10-14, 2015. s.l. : s.n., Résumé Plant and Animal Genome Conference. 23, San Diego, États-Unis, 10 January 2015/14 January 2015.

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Abstract : The mantled somaclonal variation of oil palm (Elaeis guineensis Jacq.) is morphologically similar to mutants defective in MADS-box genes of the B-class. Indeed in such mutants male floral organs are converted into female ones and this can be observed in oil palm flowers of both sexes. The detrimental consequences of somaclonal variation on fruit set then oil yields and its unpredictable incidence in clonal progenies have prompted the search for early detection markers. More generally, a better understanding of the molecular mechanisms underlying the onset and the maintenance of this variant phenotype is needed. The mantledsomaclonal variation is observed only in clonal populations generated through somatic embryogenesis at a large commercial stage. Thus, because of the nature of the variation, research strategy must involve two parallel approaches aimed at studying simultaneously the in vitro stages of clonal palms production (the flask) and the in plantadevelopment of the reproductive organs which are affected by the phenotype (the flower). On both materials a novel combination of epigenetics approaches, high-throughput sequencing technologies and bioinformatics analyses now provide new insights into a complex developmental phenomenon. Our research work also paves the way for innovation and development oriented towards end-users in the palm oil industry. (Texte intégral)

Classification Agris : F63 - Plant physiology - Reproduction
F62 - Plant physiology - Growth and development
F30 - Plant genetics and breeding

Auteurs et affiliations

  • Jaligot Estelle, CIRAD-BIOS-UMR DIADE (FRA) ORCID: 0000-0002-9252-5271
  • Wei Yeng Hooi, FELDA (MYS)
  • Richaud Frédérique, CIRAD-BIOS-UMR DIADE (FRA)
  • Agbessi Mawussé D.T.
  • Yen Yen Kwan, FGV (MYS)
  • Beulé Thierry, CIRAD-BIOS-UMR DIADE (FRA)
  • Collin Myriam, IRD (FRA)
  • Debladis Emilie, IRD (FRA)
  • Sabot François, IRD (FRA)
  • Garsmeur Olivier, CIRAD-BIOS-UMR AGAP (FRA) ORCID: 0000-0001-8869-3689
  • D'Hont Angélique, CIRAD-BIOS-UMR AGAP (FRA)
  • Alwee Sharifah Shahrul Rabiah Syed, FELDA (MYS)
  • Rival Alain, CIRAD-DGDRS-DRE (IDN) ORCID: 0000-0001-6304-3268

Source : Cirad - Agritrop (https://agritrop.cirad.fr/575366/)

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