Fig. 3.

Augmented effects by the D subgenome of hexaploid wheat on physiological and morphological traits under salt stress. (A) Number of traits showing differences in the D-subgenome effect between normal conditions (DEN) and salt-stress conditions (DES); for a given trait, DEN = ratio of neo-6x's value/4x's value under normal conditions, and DES = ratio of neo-6x's value/4x's value under salt stress conditions. (B) DEN was plotted against DES on a logarithmic scale; icons represent given traits. For a given physiological performance, x = Log₂(DEN) and y = Log₂(DES). The icons aggregated to the y axis indicate that the physiological traits have small differences between neo-6x and 4x under normal conditions; the icons aggregated to the x axis indicate small differences between neo-6x and 4x under salt stress. (C) Distribution of several key physiological traits including survivorship, photosynthesis, chlorophyll content, Na⁺ metabolism, free amino acid (Tyr), and accumulation of starch. Detailed information of all measured traits is given in Dataset S2.