Figure 4From: Functional mechanisms of drought tolerance in subtropical maize (Zea mays L.) identified using genome-wide association mappingFunctional roles of candidate genes associated with drought tolerance. The outermost circle represents the drought-tolerant genes mapped in the present study; the middle circle shows the molecular mechanisms involved in drought tolerance; and the inner circle describes the functional role of the GWA candidate genes that directly lead to drought tolerance.Back to article page