Figure 3. Complementation Studies Indicate AtHKT1 Natural Variant Is Responsible for the Higher Na⁺ Content in Shoots of Ts-1 and Tsu-1.

Na⁺ contents were analyzed in shoots of Col-0 (n = 140), hkt1–1 (n = 78), Ts-1 (n = 40), Tsu-1 (n = 40), and F1 hybrid plants derived from the crosses of hkt1–1 × Col-0 (n = 12), hkt1–1 × Ts-1 (n = 50), and hkt1–1 × Tsu-1 (n = 10). Plants were grown for 42 d under short-day conditions. Presented data are the mean ± SE.