SUNN — Medicago truncatula

Summary

MTR_4G070970, known as SUNN, encodes a leucine-rich repeat receptor-like kinase (LRR-RLK) with transmembrane receptor protein serine/threonine kinase activity, ATP binding, and receptor serine/threonine kinase binding. In barrel medic, SUNN is associated with nitrogen fixation, meristem development, regulation of floral meristem size and organ number, organogenesis, cytokinin anabolism, auxin polar transport, appressorium formation, actin depolymerization, response to nitrate and nutrient levels, callus formation, stomatal complex morphogenesis, and gametophyte development. The protein localizes to the plasma membrane and extracellular region. SUNN is also linked to traits including 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.