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Non-systemic expression of a stress-responsive maize polyubiquitin gene (Ubi-1) in transgenic rice plants
I Takimoto1, A H Christensen, P H Quail
1Department of Biological Science, Faculty of Science, Hokkaido University, Sapporo, Japan.
Plant Molecular Biology
|November 1, 1994
Abstract:
We have used the promoter, 1st exon and 1st intron of the maize polyubiquitin gene (Ubi-1) for rice transformation experiments and revealed the characteristic expression of Ubi-1 gene: (1) Ubi-1 gene is not regulated systemically but rather individual cells respond independently to the heat or physical stress; (2) Ubi-1 gene changes its tissue-specific expression in response to stress treatment; (3) the expression of Ubi-1 gene is dependent on cell cycle.