Novel insights into the genomics of rice root adaptive development
Date
2005
Authors
Perin, C.
Rebouillat, J.
Brasileiro, A. M. C.
Dievart, A.
Gantet, P.
Breitler, J. C.
Johnson, Alexander Arthur Theodore
Courtois, B.
Ahmadi, N.
de Raissac, M.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Rice Genetics V, Proceedings of the Fifth International Rice Genetics Symposium, 2005: pp.117-141
Statement of Responsibility
Conference Name
International Rice Genetics Symposium (5th : 19-23 November 2005 : Los Baños, Philippines)
Abstract
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.