Acyltransferases and uses thereof in fatty acid production

A polynucleotide comprising a nucleic acid sequence selected from the group consisting of:

• a) a nucleic acid sequence having the nucleotide sequence of SEQ ID NOs:
• 1, 3, 5, 7, 9 or 15;
• b) a nucleic acid sequence encoding a polypeptide having the amino acid sequence of SEQ ID NOs:
• 2, 4, 6, 8, 10 or 16;
• c) a nucleic acid sequence at least 40% identical to the nucleic acid sequence of a) or b), wherein the nucleic acid sequence encodes a polypeptide having acyltransferase activity;
• d) a nucleic acid sequence encoding a polypeptide having acyltransferase activity and having an amino acid sequence which is at least 45% identical to the amino acid sequence of any one of a), b) or c);
• and
• e) a nucleic acid sequence that is capable of hybridizing under stringent conditions to any one of a), b), c) or d), wherein the nucleic acid sequence encodes a polypeptide having acyltransferase activity.