Figure EV1. Frequency distribution of Na⁺ and K⁺ contents and Na⁺/K⁺ ratio in root and shoot of 369 accessions.

• A–C
  Frequency distribution of Na⁺ (A), K⁺ (B), and Na⁺/K⁺ ratio (C) in roots of the tomato population.
• D–F
  Frequency distribution of Na⁺ (D), K⁺ (E), and Na⁺/K⁺ ratio (F) in shoots of the tomato population.

Data information: Red curve indicates the fitted line of the distribution.