Patent ID: 8017839

Claim:
A process for the production of arachidonic acid or eicosapentaenoic acid or arachidonic acid and eicosapentaenoic acid in transgenic plants that produce mature seeds with a content of at least 1% by weight of said compounds referred to the total lipid content of said organism which comprises: a) introducing at least one nucleic acid sequence in said transgenic plant, which encodes a polypeptide having a Δ-12-desaturase- and Δ-15-desaturase-activity, and b) introducing at least one second nucleic acid sequence in said transgenic plant, which encodes a polypeptide having a Δ-9-elongase-activity, and c) introducing at least one third nucleic acid sequence in said transgenic plant, which encodes a polypeptide having a Δ-8-desaturase-activity, and d) introducing at least one fourth nucleic acid sequence, which encodes a polypeptide having a Δ-5-desaturase-activity, and e) cultivating and harvesting of said transgenic plant, wherein the nucleic acid sequence which encodes a polypeptide having Δ-9 elongase activity comprises a nucleic acid sequence selected from the group consisting of a) the nucleic acid sequence of SEQ ID NO: 11; b) a nucleic acid sequence encoding the polypeptide sequence of SEQ ID NO: 12; and c) a nucleic acid sequence encoding a polypeptide having Δ-9 elongase activity and having at least 90% homology to the sequence of SEQ ID NO: 12.