RR4 — Medicago truncatula

Summary

MTR_1G049000, designated MtRR4, encodes a response regulator protein of the ARR-like family with histidine phosphotransfer kinase activity, phosphorelay response regulator activity, red/far-red light photoreceptor activity, and sequence-specific DNA binding activity. The gene is associated with nitrogen fixation, regulation of cytokinin-mediated signalling, organogenesis, abscisic acid metabolism, H2O2-mediated signaling pathway, circadian regulation of calcium ion oscillation, and photoacclimation. It localises to the nucleus, cytoplasm, plastid, plasmodesma, and plasmalemma. MtRR4 is linked to yield trait, biomass yield, photosynthetic ability, leaf angle, root phototropism response trait, phosphorus uptake, cadmium concentration, iron content trait, glyphosate sensitivity, nitrate sensitivity, and biotic plant stress trait. Phenotypic associations include altered cytokinin and red light sensitivity, elongated petioles, root development changes, circadian period and phase, and stress responses to salt, dehydration, and low temperature.