SUNN — Medicago truncatula

Summary

MTR_7G446160, symbol SUNN, on barrel medic chromosome 7, encodes a transmembrane receptor serine/threonine kinase with leucine-rich repeat domains. This gene is associated with nitrogen fixation, meristem development, floral organ development, organogenesis, and regulation of floral meristem size. It is linked to appressorium formation, callus formation, cytokinin anabolism, actin depolymerization, auxin polar transport, and peptide modification. SUNN is associated with responses to nutrient and nitrate levels, and with traits including nitrogen content, phosphorus uptake, lateral root length, and root length. The encoded protein localizes to the plasma membrane, endoplasmic reticulum membrane, perinuclear ER membrane, cortical ER, extracellular region, and nucleus. Related genes in other species link the family to similar developmental and signaling processes.