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The α -tubulin gene family in wheat (Triticum aestivum L.) and differential gene expression during cold acclimation

Title:

The α -tubulin gene family in wheat (Triticum aestivum L.) and differential gene expression during cold acclimation

Scoles, G. and Ridha Farajalla, Mohammed and Gulick, Patrick (2007) The α -tubulin gene family in wheat (Triticum aestivum L.) and differential gene expression during cold acclimation. Genome, 50 (5). pp. 502-510. ISSN 0831-2796

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Official URL: http://dx.doi.org/10.1139/G07-027

Abstract

The α-tubulins and β-tubulins are the major constituents of microtubules, which have been recognized as important structural elements in cell growth and morphogenesis, and, recently, for their role in regulation and signal transduction. We have identified 15 full-length cDNAs for the members of the α-tubulin gene family in hexaploid bread wheat (Triticum aestivum L.). The genes were clustered into 5 homeologous groups of 3 genes. Representatives of the 5 homeologous groups were mapped to different chromosome arms, and the genome of origin was determined for each gene. Changes in mRNA levels were observed for the paralogous members of the gene family during cold acclimation. Three members of the family had initial decreases in mRNA levels in response to cold treatment, which were followed by increases, each with a different pattern of reinduction. One gene-family member showed increased mRNA for up to 14 d during cold acclimation and had decreased levels after 36 d of cold treatment; a fifth paralogous member of the gene family had slowly declining mRNA levels up to 36 d. Subtle differences in the level of gene expression among homeologs and large differences among paralogs were detected by comparing the relative abundance of wheat α-tubulin expressed sequence tags (ESTs) in public databases.

Divisions:Concordia University > Faculty of Arts and Science > Biology
Item Type:Article
Refereed:Yes
Authors:Scoles, G. and Ridha Farajalla, Mohammed and Gulick, Patrick
Journal or Publication:Genome
Date:2007
Keywords:alpha tubulin, cold acclimation, gene expression, gene family, allopolypoid, homeologs
ID Code:36113
Deposited By:ANDREA MURRAY
Deposited On:28 Nov 2011 15:29
Last Modified:28 Nov 2011 15:29
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