SUNN — Pisum sativum

Summary

PSAT7G240480, designated SUNN on garden pea chromosome 7LG7, encodes a transmembrane receptor serine/threonine kinase with ATP-binding activity, belonging to the Ser/Thr kinase diverse regulatory family. The gene is associated with nodulation, regulation of floral meristem size, floral organ development, specification of floral organ number, cytokinin anabolism, gametophyte development, embryo sac and ovule development, stomatal complex morphogenesis, and responses to salinity, heat acclimation, and other organisms. The encoded protein localises to the plasma membrane and extracellular region. Studies of related genes in other species link the SUNN family to meristem regulation and nodulation control, though these specific functions are not yet established in pea.