Patent ID: 7919685

Claim:
An isolated polynucleotide encoding a polypeptide having desaturase activity that desaturates a fatty acid molecule at carbon 6, wherein the polynucleotide is selected from the group consisting of: a) a polynucleotide encoding the polypeptide sequence of SEQ ID NO:2 or SEQ ID NO:4; b) a polynucleotide comprising the nucleic acid sequence of SEQ ID NO:1; c) a polynucleotide hybridizing to SEQ ID NO:1 or a full length complement thereof, under conditions of 5×SSC, 50% formamide and 42° C.; and d) a polynucleotide encoding a polypeptide with at least 85% sequence identity to a polypeptide sequence of SEQ ID NO:2 or SEQ ID NO:4.