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Carotenoid composition in storage roots of carrot transgenic lines expressing AtDXS and AtDXR. (A) Quantification of α-carotene, β-carotene and total carotenoids in storage roots of three DXS transgenic lines, (B) Quantification of α-carotene, β-carotene and total carotenoids in the storage root of three DXR transgenic lines. Asterisks indicate significant differences between transgenic lines and wt determined two-tailed unpaired Student’s t-test. ∗p < 0.05; ∗∗p < 0.01; ∗∗∗p < 0.001.
