Abstract
Eucalyptus is a major raw material for paper manufacturing. Understanding the mechanism of xylem differentiation is important for improving paper qualities. For comprehensive understanding of xylem differentiation, we are collecting the genome-scale information in Eucalyptus species. In this report, we show the expression profiles of the transcription factors in xylem.
We collected the gene expression profiles of three different Eucalyptus trees using our Eucalyptus oligo-microarray. From the profiles, We identified the expression trends of the genes involved in cell wall biosynthesis. Their trends could be divided into two groups (Type 1 and 2). Then, we identified the two gene clusters, which showed the type 1 or 2 trend. Each cluster has several transcription factors. It seems that some of these factors are regulators for the genes in two expression trends. We are currently analyzing the function of these factors.
