Fig. 4

Lipid class content on fresh weight (fw) basis in endosperm (including starchy endosperm, aleurone cells, seed coat and pericarp) of mature grains of four homozygous lines (with one, two or twelve inserts (ins)) and their corresponding nulls (controls) of T2 generation. Triacylglycerol a, polar lipids b, and other remaining lipids c. The results are shown as the mean ± standard deviation from two biological replicates each consisting of three grains. Asterisks indicate significant differences as compared to corresponding nulls according to Fisher’s test with a significance threshold of P ≤ 0.05