SUNN — Medicago truncatula

Summary

MTR_3G449390, symbol SUNN, encodes a transmembrane receptor protein serine/threonine kinase with an extracellular leucine-rich repeat domain, placing it in the inactive receptor-like kinase family. In barrel medic, SUNN is associated with nitrogen fixation, meristem development, regulation of floral organ number and meristem size, organogenesis, callus formation, appressorium formation, actin depolymerization, cytokinin anabolism, auxin transport, stomatal morphogenesis, and responses to nitrate and nutrient levels. It localizes to the plasma membrane and extracellular region. The gene is also linked to nitrogen content, phosphorus uptake, lateral root length, and root length. Studies of related genes in other species connect the family to similar developmental and symbiotic processes.