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Fig. 1. Phylogenetic tree of soybean and Arabidopsis omega-3 fatty-acid desaturases. The protein sequences for the soybean and Arabidopsis omega-3 fatty-acid desaturases were subjected to a ClustalW1.8 alignment and Phylip (no bootstrap) phylogenetic tree prediction (Brodsky et al., 1995). The bar represents 0.1 genetic distance units calculated as the average of the pairwise distances. Genes preceded by Gm are from soybean and those preceded by At are from Arabidopsis thaliana. The GenBank accession numbers for the sequences are GmFAD3A (AY204710), GmFAD3B (AY204711 and L22964), GmFAD3C (AY204712 and AB05125), GmL22964 (L22964), AtFAD3 (D26508), AtFAD7 (D14007), and AtFAD8 (L27158).
