Abstract: This invention provides DNAs of a prenyltransferase derived from a hop (Humulus) plant. The invention also provides protein having the prenyltransferase activity of a hop plant and a method for producing and detecting a novel organism using a gene encoding such protein.

Abstract: This invention provides a means for obtaining flowering plants with a novel flower color, and a method for producing a plant having petals with a novel flower color by use of a novel acyltransferase protein and the gene encoding the same.

Abstract: A novel plant transposon that induces bud mutation, transposase thereof, and a method for efficiently inducing bud mutation by improvement in the transposition efficiency are provided. A novel transposon having terminal inverted repeat sequences (SEQ ID NO: 1 and SEQ ID NO: 2) shown below has been isolated for the first time from carnation (Dianthus caryophyllus) and the nucleotide sequence thereof has been determined. The transposon has contained a gene encoding the transposase in its sequence. The transposon induces bud mutation when it is inserted into a gene. The transposition frequency is elevated due to environmental stress. TAGAGCTGGCAAA---TTTGCCAGCTCTA (SEQ ID NOS 1 & 2, respectively in order of appearance).

Abstract: A novel method is provided, which makes it possible to perform mass propagation of a plant of the family Araceae, the family Bromeliaceae, or the family Marantaceae. Specifically, a method for producing an embryogenic callus, comprising culturing a leaf sheath or a part thereof of a plant selected from the group consisting of the family Araceae, the family Bromeliaceae, and the family Marantaceae as an explant and then inducing an embryogenic callus and a propagation method comprising regenerating a plant through induction of a somatic embryo from the embryogenic callus obtained by the above method are also provided herein.

Abstract: A novel plant transposon that induces bud mutation, transposase thereof, and a method for efficiently inducing bud mutation by improvement in the transposition efficiency are provided. A novel transposon having terminal inverted repeat sequences (SEQ ID NO: 1 and SEQ ID NO: 2) shown below has been isolated for the first time from carnation (Dianthus caryophyllus) and the nucleotide sequence thereof has been determined. The transposon has contained a gene encoding the transposase in its sequence. The transposon induces bud mutation when it is inserted into a gene. The transposition frequency is elevated due to environmental stress. TAGAGCTGGCAAA—TTTGCCAGCTCTA (SEQ ID NOS 1 & 2, respectively in order of appearance).