Patent ID: 8119860

Claim:
An isolated polynucleotide comprising: (a) a nucleotide sequence encoding a polypeptide having delta-9 elongase activity, wherein the polypeptide has at least 90% amino acid identity, based on the Clustal V method of alignment, when compared to an amino acid sequence as set forth in SEQ ID NO:13; (b) a nucleotide sequence encoding a polypeptide having delta-9 elongase activity, wherein the nucleotide sequence has at least 90% sequence identity, based on the BLASTN method of alignment, when compared to a nucleotide sequence as set forth in SEQ ID NO:11; (c) a nucleotide sequence encoding a polypeptide having delta-9 elongase activity, wherein the nucleotide sequence hybridizes to a nucleotide sequence as set forth in SEQ ID NO:11 under the following conditions: hybridization in 50% formamide, 1 M NaCl, and 1% SDS at 37° C., and a wash in 0.1×SSC at 60° C.; or (d) a complement of the nucleotide sequence of (a), (b) or (c), wherein the complement and the nucleotide sequence consist of the same number of nucleotides and are 100% complementary.