Identification of Factors Linked to Higher Water-Deficit Stress Tolerance in Compared to Other Grain Amaranths and , Their Shared Ancestor.

Water deficit stress (WDS)-tolerance in grain amaranths (, and A. ), and , their presumed shared ancestor, was examined. was the most WDS-tolerant species, a trait that correlated with an enhanced osmotic adjustment (OA), a stronger expression of abscisic acid (ABA) marker genes and a more robust sugar starvation response (SSR).