Water impacts nutrient dose responses genome-wide to affect crop production.

摘要: Changes in nutrient dose have dramatic effects on gene expression and development. One outstanding question is whether organisms respond to changes absolute amount (moles) vs. its concentration water (molarity). This particularly relevant plants, as soil drying can alter concentration, without changing amount. To compare the of we expose rice a factorial matrix varying nitrogen (N) (W) over range combinations, quantify transcriptome phenotype responses. Using linear models, identify distinct responses either N-moles, W-volume, N-molarity (N/W), or their synergistic interaction (N×W). Importantly, genes whose patterns are best explained by N-dose W interactions (N/W N×W) seedlings associated with crop outcomes replicated field trials. Such N-by-W responsive may assist future efforts develop crops resilient increasingly arid, low soils. Scarcity nutrients limit yields. Here Swift et al. show that responds differently available compared profiles performance low-nutrient