Figure 4: Phylogenetic analysis of the FA desaturase gene families identified from flax cv. CDC Bethune: SAD (A), FAD2 and FAD3 (B). Deduced amino acid sequences were used and bootstrap support is shown at each branch as the percentage of 1,000 bootstrap replicates. The asterix (*) beside the FAD2a genes denotes that the deduced amino acid sequences were corrected based on the de novo BAC sequencing. The previously identified orthologous gene sequences were included and highlighted in red. At: Arabidopsis; Bc: Brassica carinata (Ethiopian mustard); Bna: Brassica napus; Gm: Glycine max (soybean); Lc: Lepidium campestre (field pepperwort).