| abstract |
The invention relates to nucleic acid sequences, nucleic acid constructs, vectors and organisms containing the nucleic acid sequences of the invention, vectors containing the nucleic acid sequences and / or the nucleic acid constructs and transgenic organisms containing the aforementioned nucleic acid sequences, nucleic acid constructs and / or vectors.n n n The present invention also relates to a process for producing polyunsaturated fatty acids in an organism by introducing into the organism nucleic acids encoding Δ5-elongase activity polypeptides. Advantageously, these nucleic acid sequences may optionally be expressed in the organism together with other nucleic acid sequences encoding polypeptides of biosynthesis of the fatty acid or lipid metabolism. Furthermore, the invention relates to a process for the preparation of oils and / or triacylglycerides having an increased content of long-chain polyunsaturated fatty acids.n n n Another part of the invention relates to an oil, lipid or fatty acid composition comprising PUFAs prepared by the process and derived from transgenic plants. |