20 A PROMOTER Cv20oxP WHICH REGULATES THE INTEGUMENT-SPECIFIC EXPRESSION OF A GIBBERELLIN 20-OXIDASE GENE IN DEVELOPING SEEDS OF WATERMELON AND A METHOD FOR GENERATING SEEDLESS FRUITS USING THE PROMOTER

摘要

PURPOSE: Provided are a testa specific gene, which is isolated from the developing seed of Citrullus lanatus, a promoter and a method for generating seedless fruits by using the promoter of the said testa specific gene. CONSTITUTION: The Cv20ox gene, gibberellin 20-oxidase(GA 20-oxidase) gene showing the tissue-specific expression pattern, is strongly expressed in the integumental tissue at seed development of watermelon and is weakly expressed in the inner tissue of seed. The promoter regulates the integument-specific expression of the gene and the method for generating seedless fruits is characterized by introducing plant growth regulation gene ligated to the promoter and regulating the overexpression of plant growth regulation composition in the testa.