Discovery and expression profile analysis of AP2/ERF family genes from Triticum aestivum

Mol Biol Rep. 2011 Feb;38(2):745-53. doi: 10.1007/s11033-010-0162-7. Epub 2010 Apr 21.

Abstract

Throughout its development, common wheat, Triticum aestivum responds to different kinds of adverse abiotic and biotic stress by expressing specific genes that allow it to adapt to these stresses. In this process, genes in the AP2/ERF family encode transcriptional regulators involved in diverse developmental and physiological processes play critical roles. Here, we established an extensive picture of the AP2/ERF family genes in wheat. From 960, 174 ESTs of T. aestivum, 117 putative AP2/ERF family genes were identified by in silico analysis based on the presence of the conserved AP2/ERF domain amino acid sequence of Arabidopsis thaliana. Based on the model species A. thaliana, the AP2/ERF TFs from T. aestivum were classified into five subfamilies with the following number of members: DREB (57), ERF (47), AP2 (9), RAV (3) and Soloist (1). Using the available EST information as a source of expression data, the putative AP2/ERF family genes from T. aestivum were detected in nine kinds of tissues. Transcripts of the genes were shown to be most abundant in leaves, followed by roots and seeds, and the least abundant in stem. Most of the T. aestivum AP2/ERF family genes showed some tissue specificity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Arabidopsis / genetics*
  • Arabidopsis Proteins / genetics*
  • Expressed Sequence Tags
  • Gene Expression Profiling*
  • Gene Expression Regulation, Plant*
  • Genes, Plant
  • Molecular Sequence Data
  • Multigene Family
  • Phylogeny
  • Plant Roots / metabolism
  • Sequence Homology, Amino Acid
  • Transcription Factor AP-2 / genetics*
  • Triticum / genetics*

Substances

  • Arabidopsis Proteins
  • ERS protein, Arabidopsis
  • Transcription Factor AP-2