It is intended to construct a system for arbitrarily expressing a desired gene at a desired site in a plant. This object can be solved by providing a plant containing at least one promoter allowing a specific level of expression and a gene ligated to this promoter in an operable manner wherein the specificity of the promoter is determined based on the expression frequency of a gene containing the promoter in a cDNA database involving the promoter-containing gene. As a cDNA database, use may be made of those published in the genome project.

 
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< Porcine CMP-N-Acetylneuraminic acid hydroxylase gene

< Allene oxide synthase and divinyl ether synthase from the cyp74-enzyme family isolated out of physcomitrella patens, the nucleotide sequences that code these synthases, and method for producing pathogen-resistant plants

> Tobacco nicotine demethylase genomic clone and uses thereof

> Murine genomic polynucleotide sequence encoding a G-protein coupled receptor and methods of use therefor

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