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Journal of Plant Biochemistry and Biotechnology

, Volume 22, Issue 4, pp 359–371 | Cite as

Molecular approaches for designing heat tolerant wheat

  • Sundeep Kumar
  • Prerna Kumari
  • Uttam Kumar
  • Monendra Grover
  • Amit Kumar Singh
  • Rakesh Singh
  • R. S. Sengar
Review Article

Abstract

Global warming is causing changes in temperature rapidly for over two decades. The increased temperature during reproductive phase of plant growth has emerged as a serious problem all over the world. Constant or transitory high temperatures may affect the plant growth and development which may lead to diverse morphological, physiological and biochemical changes in plants ultimately decrease in yield. Genetic approaches leading to improved thermo-tolerance can mitigate the reduction in yield. In this backdrop, several indirect traits or parameters have been developed for identification of heat tolerant plants/lines. The traits like stay green/delayed senescence are reported to contribute toward capability of plants to tolerate heat stress. In addition, understanding of biochemical and molecular basis of thermo-tolerance in combination with genetic approaches like identification and mapping of heat tolerant QTLs will not only assist conventional breeders to develop heat tolerant cultivars but also help molecular biologists to clone and characterize genes associated with heat tolerance, which could be used in genetically modified heat tolerant plants. Therefore, overviews of different strategies for developing heat tolerant wheat are discussed in this review.

Keywords

Canopy temperature depression Global warming Molecular breeding QTL mapping Reactive oxygen species Stay green Stomatal conductance 

Abbreviations

CTD

Canopy temperature depression

GAUD

Green area under decline

GFD

Grain filling duration

GFR

Grain filling rate

GST

Glutathione stransferase

HIS

Heat susceptibility index

HSFs

Heat shock transcription factors

MTS

Membrane thermo stability

RH

Relative humidity

ROS

Reactive oxygen species

Rubisco

Ribulose-bisphosphate carboxylase

SAGE

Serial analysis of gene expression

SSI

Stress susceptibility index

TKW

Thousand kernel weight

Supplementary material

13562_2013_229_MOESM1_ESM.doc (136 kb)
ESM 1 (DOC 136 kb)

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Copyright information

© Society for Plant Biochemistry and Biotechnology 2013

Authors and Affiliations

  • Sundeep Kumar
    • 1
  • Prerna Kumari
    • 2
  • Uttam Kumar
    • 3
  • Monendra Grover
    • 1
  • Amit Kumar Singh
    • 1
  • Rakesh Singh
    • 1
  • R. S. Sengar
    • 2
  1. 1.National Bureau of Plant Genetic ResourcesNew DelhiIndia
  2. 2.Department of BiotechnologyS.V.P.U.A&TMeerutIndia
  3. 3.International Maize and Wheat Improvement Center (CIMMYT)Mexico D.F.Mexico

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