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Updated: Jul 17, 2026

The Use of Induced Somatic Sector Analysis (ISSA) for Studying Genes and Promoters Involved in Wood Formation and Secondary Stem Development
Published on: October 5, 2016
Transcriptional regulation in wood formation
1RIKEN Plant Science Center, Yokohama, Kanagawa 230-0045, Japan. demura@riken.jp
Abstract:
Wood (i.e. xylem tissue) in trees is mainly composed of two types of cells, fibres and tracheary elements. Recent molecular studies of various trees, as well as the non-tree species Arabidopsis thaliana and Zinnia elegans, have revealed coordinated gene expression during differentiation of these cells in wood and the presence of several transcription factors that might govern the complex networks of transcriptional regulation. This article reviews recent findings concerning the regulation of genes by transcription factors involved in wood formation such as AUXIN RESPONSE FACTOR (ARF), CLASS III HOMEODOMAIN-LEUCINE ZIPPER (HD-ZIPIII), KANADI (KAN), MYB and NAM/ATAF/CUC (NAC).
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