SAR1 — Triticum turgidum subsp. durum

Summary

TRITD5BV1G221550 (SAR1) on durum wheat chromosome 5B encodes a Longin domain-containing V-SNARE coiled-coil homology domain protein with SNARE and protein membrane adaptor molecular functions. It is associated with membrane fusion, secretion, cell plate formation involved in plant-type cell wall biogenesis, protein localization to the plasma membrane, and plasmodesma-mediated cell-to-cell transport. The gene is linked to defense response by callose deposition, salicylic acid mediated signaling pathway, downregulation of cellular defense response, and downregulation of programmed cell death, as well as response to nematode, wheat powdery mildew disease response, and mechanical stimulus response. Associations with agronomic traits include drought tolerance, cadmium concentration, anthocyanin content, flowering time trait, leaf senescence trait, root hair length, stomatal complex closure time, and plant cell size. The gene product localizes to the endomembrane system, cell plate, vesicle, SNARE complex, exocyst, and pollen tube tip. Studies of related genes in other species connect the family to potassium channel activity, pathogen immunity, and pollen tube growth.