BTR1 — Triticum turgidum subsp. durum

Summary

TRITD6BV1G222820, designated BTR1 in durum wheat (chromosome 6B), encodes a K Homology domain-containing protein with calcium-dependent protein serine/threonine kinase activity, ssRNA binding, and protein kinase activity. The gene product localises to the cytosol, plasma membrane, cytoplasm, and nucleus. BTR1 is associated with regulation of stomatal opening and closure, abscisic acid-mediated signaling, reactive oxygen species metabolism, leaf development, and defence response to bacteria. It is linked to sucrose metabolism, triglyceride and unsaturated fatty acid anabolism, and osmotic and salinity responses. Trait associations include water use efficiency, transpiration rate, seed yield, biomass yield, leaf elongation rate, root thickness, flowering time, seed dormancy, and low temperature stress response. Studies of related genes in other species link the family to stomatal regulation, drought tolerance, ABA signaling, and photosynthetic rate.