NSP1 — Medicago truncatula

Summary

MTR_8G020840, the NSP1 gene of barrel medic (Medicago truncatula) on chromosome 8, encodes a GRAS family transcription factor with sequence-specific DNA-binding activity. The protein is localised to the nucleus. NSP1 is associated with nitrogen fixation, arbuscular mycorrhizae formation, and the cellular response to phosphate starvation. It has been linked to the regulation of seed dormancy and germination, secondary shoot formation, and the downregulation of gibberellic acid-mediated signalling. Additional associations include strigolactone and hormone anabolism, lipogenesis, organogenesis, morphogenesis, radial pattern formation, asymmetric cell division, RNA surveillance, ribosome biogenesis, negative regulation of the mitotic cell cycle, and stress response. Related genes in other species link the GRAS family to similar developmental and signalling processes.