DNAS ENCODING PROTEIN HAVING FUNCTION OF FORMING AND REGULATING CELLULOSIC FIBER CELL WALL IN TREE TRUNK AND PROMOTER DNAS OF THE SAME

摘要

By constructing and using a eucalyptus EST database, genes participating in cell wall synthesis in a eucalyptus cellulosic fiber-forming tissue and transcriptional factors regulating the expression of these genes are extracted by the microarray analysis and differences in the expression thereof are analyzed depending on aboveground height and species. As a result, cell wall synthesis genes expressed in the eucalyptus cellulosic fiber-forming tissue and transcriptional factors are specified and it is identified that they show dominantly coordinated variation in the expression depending on aboveground height and species. Moreover, promoter DNAs of them are obtained. It is considered that the above-described genes and expression data/promoter DNAs are usable in controlling the cell wall synthesis by the cellulosic fiber-forming tissue and morphological formation.