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Sorghum y1 gene induces accumulation of flavonoid compounds in transgenic maize leaves. Y1-rr, Y1-pr, and Y1-wr are independent transgenic events; NS, Negative segregant; P1-rr and P1-wr, maize lines carrying endogenous p1 alleles. Values shown are mean ± SE. (A) Total flavonoids expressed as catechin equivalents; (B) Flavan-4-ols expressed as absorbance at 550 nm.
