STM — Brassica napus

Summary

BnSTM (DARMORV10_C03P78910.1) on chromosome C03 of oilseed rape (Brassica napus) encodes a serine hydroxymethyltransferase (SHMT) with pyridoxal phosphate binding and glycine hydroxymethyltransferase activity. The gene is associated with glycine and L-serine metabolism, tetrahydrofolate interconversion, and the glycine cleavage system. It is linked to shoot apical meristem development, inflorescence meristem identity, floral whorl morphogenesis, and plant organ formation. Associations with agronomic traits include drought tolerance, salt tolerance, flowering time, leaf chlorosis, peduncle length, and fruit growth. The gene is also linked to photorespiratory metabolism, oxidative stress tolerance, stomatal closure, and leaf senescence. Related genes in other species are linked to basal immunity, thermo-resilience, and stem growth.