Fig. 4. Total fatty acid composition (A) and composition exclusively at the sn-2 position of the glycerol backbone (B) of galactolipids in wild type (open bars) and tgd1-1 mutant (closed bars). The carbon and double bond number for each fatty acid is indicated. Total and positional analyses were performed on independently grown plant batches. The means of three replicates are given, with standard errors in all cases <5%.