SAPK4 — Triticum aestivum

Summary

TRAESCS3D02G374300, symbol SAPK4 (also known as TaPKABA1, TaSnRK2.4), encodes a non-specific serine/threonine protein kinase (EC 2.7.11.1) with protein serine/threonine kinase activity and ATP binding. This wheat gene on chromosome 3D is associated with disease resistance and salt stress tolerance, as observed for the SNRK2.4-B variant. It is linked to abscisic acid (ABA) signaling, embryogenesis, seed germination, seedling development, chloroplast organization, protein phosphorylation, signal transduction, and defence responses to bacteria. The encoded protein localizes to the cytoplasm and nucleus. Associations with agronomically important traits include grain yield, grain weight, heading time, anthesis time, plant height, ear number, leaf length, stem elongation, root length, chlorophyll content, cell membrane stability, germination rate, days to maturity, and tolerance to drought, heat, cold, and low temperature stress. Studies of related genes in other species link the family to freezing and salt tolerance.