A transcriptional roadmap to wood formation

M Hertzberg, H Aspeborg, J Schrader, A Andersson, R Erlandsson, K Blomqvist, R Bhalerao, M Uhlen, TT Teeri, J Lundeberg, B Sundberg, P Nilsson, G Sandberg*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The large vascular meristem of poplar trees with its highly organized secondary xylem enables the boundaries between different developmental zones to be easily distinguished. This property of wood-forming tissues allowed us to determine a unique tissue-specific transcript profile for a well defined developmental gradient. RNA was prepared from different developmental stages of xylogenesis for DNA microarray analysis by using a hybrid aspen unigene set consisting of 2,995 expressed sequence tags. The analysis revealed that the genes encoding lignin and cellulose biosynthetic enzymes, as well as a number of transcription factors and other potential regulators of xylogenesis, are under strict developmental stage-specific transcriptional regulation.

Original languageEnglish
Pages (from-to)14732-14737
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume98
Issue number25
Publication statusPublished - 4 Dec 2001
MoE publication typeA1 Journal article-refereed

Keywords

  • ARABIDOPSIS-THALIANA
  • LIGNIN BIOSYNTHESIS
  • GENE
  • EXPRESSION
  • CELLS
  • MICROARRAY
  • PATTERN
  • KINASE
  • PLANTS

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