Method For The Production Of Gamma-linolenic Acid And/or Stearidonic Acid In Transgenic Brassicaceae And Linaceae (Patent US 2008/0229454 A1)

The present invention relates to the production of gamma-linolenic acid (18:3<SUP>Delta6,9,12</SUP>) or stearidonic acid (18:4<SUP>Delta6,9,12,15</SUP>) or gamma-linolenic acid (18:3<SUP>Delta6,9,12</SUP>) and stearidonic acid (18:4<SUP>Delta6,9,12,15</SUP>) in transgenic plants of the family Brassicaceae, where the transgenic plants comprise at least 10% by weight of oleic acid based on the total fatty acid content and, as the result of the activity of the Delta6-desaturases used in the method, have an increased Delta6-C<SUB>18</SUB>-fatty acid content. The invention furthermore relates to novel nucleic acid sequences which code for the Delta6-desaturases used in the method, gene constructs comprising these nucleic acid sequences, a vector and transgenic plants comprising at least one nucleic acid sequence or a gene construct.