Plant Molecular Biology

, Volume 64, Issue 4, pp 409–423 | Cite as

Regulatory gene candidates and gene expression analysis of cold acclimation in winter and spring wheat

  • Antonio F. Monroy
  • Ani Dryanova
  • Brigitte Malette
  • Daniel H. Oren
  • Mohammed Ridha Farajalla
  • Wucheng Liu
  • Jean Danyluk
  • Lasantha W. C. Ubayasena
  • Khalil Kane
  • Graham J. Scoles
  • Fathey Sarhan
  • Patrick J. Gulick
Article

Abstract

Freezing tolerance in plants develops through acclimation to cold by growth at low, above-freezing temperatures. Wheat is one of the most freezing-tolerant plants among major crop species and the wide range of freezing tolerance among wheat cultivars makes it an excellent model for investigation of the genetic basis of cold tolerance. Large numbers of genes are known to have altered levels of expression during the period of cold acclimation and there is keen interest in deciphering the signaling and regulatory pathways that control the changes in gene expression associated with acquired freezing tolerance. A 5740 feature cDNA amplicon microarray that was enriched for signal transduction and regulatory genes was constructed to compare changes in gene expression in a highly cold-tolerant winter wheat cultivar CDC Clair and a less tolerant spring cultivar, Quantum. Changes in gene expression over a time course of 14 days detected over 450 genes that were regulated by cold treatment and were differentially regulated between spring and winter cultivars, of these 130 are signaling or regulatory gene candidates, including: transcription factors, protein kinases, ubiquitin ligases and GTP, RNA and calcium binding proteins. Dynamic changes in transcript levels were seen at all periods of cold acclimation in both cultivars. There was an initial burst of gene activity detectable during the first day of CA, during which 90% of all genes with increases in transcript levels became clearly detectable and early expression differential between the two cultivars became more disparate with each successive period of cold acclimation.

Keywords

Cold acclimation Regulatory gene Gene expression profile Wheat 

Supplementary material

11103_2007_9161_MOESM1_ESM.ppt (636 kb)
(PPT 636 kb)
11103_2007_9161_MOESM2_ESM.ppt (146 kb)
(DOC 146 kb)
11103_2007_9161_MOESM3_ESM.xls (1.4 mb)
Annotation for Micorarry features, Blastx (XLS 1,429 kb)
11103_2007_9161_MOESM4_ESM.xls (6.1 mb)
All Gene Expression Data (XLS 6,201 kb)
11103_2007_9161_MOESM5_ESM.xls (290 kb)
All Features with Significant Cultivar x Cold Treatment Interaction Effect and Two Fold Change in Expression (XLS 290 kb)
11103_2007_9161_MOESM6_ESM.xls (18 kb)
Oligo nucleotide primers for RT-PCR (XLS 18 kb)
11103_2007_9161_MOESM7_ESM.xls (52 kb)
Bin Map Position for Features with Significant Cultivar by Cold Acclimation Interaction (XLS 52 kb)
11103_2007_9161_MOESM8_ESM.xls (1.7 mb)
Chromosomal Bin Mapping Data for Whole Array (XLS 1,773 kb)
11103_2007_9161_MOESM9_ESM.xls (20 kb)
Features with Treatment by Cultivar Interaction effects that map to chromosome group 4. (XLS 20 kb)
11103_2007_9161_MOESM10_ESM.doc (76 kb)
ESM10 (DOC 76 kb)

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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Antonio F. Monroy
    • 1
  • Ani Dryanova
    • 1
  • Brigitte Malette
    • 1
  • Daniel H. Oren
    • 1
  • Mohammed Ridha Farajalla
    • 1
  • Wucheng Liu
    • 1
  • Jean Danyluk
    • 2
  • Lasantha W. C. Ubayasena
    • 3
  • Khalil Kane
    • 2
  • Graham J. Scoles
    • 3
  • Fathey Sarhan
    • 2
  • Patrick J. Gulick
    • 1
  1. 1.Department of Biology and Centre for Structural and Functional GenomicsConcordia UniversityMontrealCanada
  2. 2.Département des sciences biologiquesUniversité du Québec à MontréalMontrealCanada
  3. 3.Department of Plant Sciences, College of AgricultureUniversity of SaskatchewanSaskatoonCanada
  4. 4.Microbiology and Immunology DepartmentSte-Justine HospitalMontrealCanada

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