Novel insights into the genomics of rice root adaptive development

Perin Christophe, Rebouillat Julia, Brasileiro Ana Christina Miranda, Dievart Anne, Gantet Pascal, Breitler Jean-Christophe, Johnson Alexander A.T., Courtois Brigitte, Ahmadi Nourollah, De Raïssac Marcel, Luquet Delphine, Conte Matthieu, This Dominique, Pati Pratap K., Le Q.H., Meynard Donaldo, Verdeil Jean-Luc, Guiderdoni Emmanuel. 2007. Novel insights into the genomics of rice root adaptive development. In : Rice genetics V : Proceedings of the fifth international rice genetics symposium, Manila, Philippines, 19-23 November 2005. Brar Darshan S. (ed.), Mackill David J. (ed.), Hardy Bill (ed.). IRRI. Londres : World Scientific, 117-141. ISBN 981-270-772-7 International Rice Genetics Symposium. 5, Manille, Philippines, 19 Novembre 2005/23 Novembre 2005.

Résumé : Deciphering the genetic and molecular mechanisms controlling the development of the root system and its adaptive plasticity under adverse environments is of primary importance for the sustainable establishment of the rice crop. Rice displays a complex root structure comprising several root types mostly of postembryonic origin. The large natural variation in root architecture among cultivars reflects their adaptation to contrasting agro-environmental conditions. This article reviews the current knowledge on the organization and anatomy of the various types of roots of the fibrous root system of rice, the diversity and genetic basis of natural variation of root system architecture and performance, and the molecular mechanisms underlying constitutive and adaptive root development. This paper also throws light on how the integrated approach of new tools in high-resolution microscopy imaging, expression profiling, mutant screening, and reverse genetics could facilitate the rapid discovery and analysis of the key genes and regulatory networks involved in root architectural traits affecting plant performance under field conditions.

Mots-clés Agrovoc : anatomie végétale, variation génétique, Oryza, génome, génétique moléculaire, locus des caractères quantitatifs, système racinaire, racine

Mots-clés complémentaires : QTL

Classification Agris : F50 - Anatomie et morphologie des plantes
F30 - Génétique et amélioration des plantes

Auteurs et affiliations

• Perin Christophe, CIRAD-AMIS-UMR PIA (FRA) ORCID: 0000-0002-2469-310X
• Rebouillat Julia, CIRAD-AMIS-UPR Modélisation intégrative (FRA)
• Brasileiro Ana Christina Miranda, EMBRAPA (BRA)
• Dievart Anne, INRA (FRA) ORCID: 0000-0001-9460-4638
• Gantet Pascal, UM2 (FRA)
• Breitler Jean-Christophe, CIRAD-AMIS-UMR PIA (FRA)
• Johnson Alexander A.T.
• Courtois Brigitte, CIRAD-AMIS-UMR PIA (FRA) ORCID: 0000-0003-2118-7102
• Ahmadi Nourollah, CIRAD-CA-UPR Peuplements de riz (FRA) ORCID: 0000-0003-0072-6285
• De Raïssac Marcel, CIRAD-AMIS-UMR PIA (FRA)
• Luquet Delphine, CIRAD-AMIS-UPR Modélisation intégrative (FRA) ORCID: 0000-0002-2543-7140
• Conte Matthieu, CIRAD-AMIS-UMR PIA (FRA)
• This Dominique, ENSAM [Ecole nationale supérieure agronomique de Montpellier] (FRA)
• Pati Pratap K., Guru Nanak Dev University (IND)
• Le Q.H., Polytechnical Institute of Hanoi (VNM)
• Meynard Donaldo, CIRAD-AMIS-UMR PIA (FRA)
• Verdeil Jean-Luc, CIRAD-CP-UMR BEPC (FRA)
• Guiderdoni Emmanuel, CIRAD-AMIS-UMR PIA (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/540510/)

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