1. The genetically modified organisms to be placed on the market as product, hereinafter ‘the product’, are cut flowers of carnation ( Dianthus caryophyllus L.), with modified flower colour, derived from a Dianthus caryophyllus L. cell culture, and transformed with Agrobacterium tumefaciens , strain AGL0, using the vector pCGP3366, and resulting in line 25958.
The product contains the following DNA in four cassettes:
(a)
Cassette 1
The petunia dfr gene encoding dihydroflavonol 4-reductase (DFR), a key enzyme in the anthocyanin biosynthetic pathway, including its own promoter and terminator.
(b)
Cassette 2
The promoter sequence from snapdragon chalcone synthase gene, flavonoid 3′5′-hydroxylase ( f3′5′h ) from Viola hortensis cDNA encoding F3′5′H, a key enzyme in the anthocyanin biosynthetic pathway, and the terminator from a petunia gene encoding a phospholipid transfer protein homologue.
(c)
Cassette 3
The Cauliflower mosaic virus 35S promoter, a hairpin-forming construct consisting of a partial dihydroflavonol 4-reductase dfr sense and antisense fragment separated by a petunia dfr intron, targeted to specific, post-transcriptional down-regulation of endogenous carnation dfr, and the CaMV 35S terminator sequence.
These three cassettes were inserted into the plant genome to obtain the desired flower colour.
(d)
Cassette 4
The Cauliflower mosaic virus 35S promoter, the 5′untranslated region of the petunia gene coding for chlorophyll a/b binding protein, the SuRB ( als ) gene coding for a mutant acetolactate synthase protein (ALS) derived from Nicotiana tabacum which confers tolerance to sulfonylurea, including its own terminator. This trait was used as a marker in the selection of transformants.
2. The consent shall cover progeny derived through vegetative reproduction of the genetically modified carnation ( Dianthus caryophyllus L., line 25958).