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Prospectives for applying molecular and genetic methodology to improve wheat cultivars in drought environments.

Authors
  • Zhao, Chang-Xing1
  • Guo, Ling-Yu
  • Jaleel, Cheruth Abdul
  • Shao, Hong-Bo
  • Yang, Hong-Bing
Type
Published Article
Journal
Comptes Rendus Biologies
Publisher
Elsevier
Publication Date
August 2008
Volume
331
Issue
8
Pages
579–586
Identifiers
DOI: 10.1016/j.crvi.2008.05.006
PMID: 18606387
Source
Medline
License
Unknown

Abstract

With the advent of molecular biotechnologies, new opportunities are available for plant physiologists to study the relationships between wheat traits and their genetic control. The functional determinations of all genes that participate in drought adaptation or tolerance reactions are expected to provide an integrated understanding of the biochemical and physiological basis of stress responses in wheat. However, despite all the recent technological breakthroughs, the overall contribution of genomics-assisted breeding to the release of drought-resilient wheat cultivars has so far been marginal. This paper critically analyses how biotechnological, genetic and information tools can contribute to accelerating the release of improved, drought-tolerant wheat cultivars. Armed with such information from established models, it will be possible to elucidate the physiological basis of drought tolerance and to select genotypes with an improved yield under water-limited conditions.

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