Manipulation of Flavonoid Biosynthesis in Plants

A substantially purified or isolated nucleic acid encoding chalcone synthase (CHS), or complementary or antisense to a sequence encoding CHS, said nucleic acid comprising a nucleotide sequence selected from the group consisting of:

• (a) sequences shown in Sequence ID Nos:
• 23, 25 to 63, 64, 66 to 68, 69, 71 to 77, 78, 80 to 90, 91, 93 and 94, 95, 97 to 100, 101, 103 to 105, 106, 313, 317, 319, 321 and 323;
• (b) complements of the sequences recited in (a);
• (c) sequences antisense to the sequences recited in (a) and (b);
• (d) functionally active variants having at least approximately 90% identity to the sequences recited in (a), (b) and (c);
• and
• (e) functionally active fragments of the sequences recited in (a), (b), (c) and (d), said functionally active fragments having a size of at least 20 nucleotides.