Progress of research on △12 fatty acid desaturases and their coding genes Study on the Expression of Δ6-Fatty Acid Desaturase Gene of Mortierella alpina in Transgenic Tobacco Correlation between AhFAD2 Polymorphism and Oleic Acid/ Linoleic Acid (O/L) Ratio in Peanut Seeds Cloning and Tissue Expression of Full-length cDNA in Gene Encoding Δ6-desaturase Fatty Acyl of Portunus trituberculatus Cloning and Expression Analysis of Full-length cDNA Sequence of a Low Temperature Resistant Candidate Gene △ 6FAD in Trachinotus ovatus Research Advance in Fatty Acid Desaturase Genes Characterization of Marker-free Transgenic Soybeans with △6-fatty Acid Desaturase Gene Expressing γ-linolenic Acid The Cloning and Gene Expression of Delta 6 Fatty Acid Desaturase of Koi Carp(Cyprinus carpiokoi) Bioinformatics Analysis of Δ12-Fatty Acid Desaturase in Plants Establishment of a Transformation System Using Inbred Line of Yellow-Seeded Brassica napus Sequence Analysis of Δ12-Fatty Acid Desaturase in Different Arachis Genotypes Antisense-Mediated Depletion of Tomato Chloroplast Omega-3 Fatty Acid Desaturase Enhances Thermal Tolerance