CRB — Triticum turgidum subsp. durum

Summary

TRITD1BV1G024840 (symbol CRB) in durum wheat chromosome 1B encodes a member of the 11S seed storage globulin family, possessing nutrient reservoir activity, ATP binding, and protein phosphorylated amino acid binding. The gene is associated with seed maturation, development, and germination, as well as embryo development ending in seed dormancy. It is associated with abscisic acid anabolism and response, brassinosteroid-mediated signalling, defense response, photoprotection, xanthophyll metabolism, and regulation of superoxide release. The encoded protein localizes to endosperm protein bodies, protein storage vacuoles, chloroplast envelope and stroma, LHCII, vacuoles, plasmodesmata, mitochondria, and extracellular regions. Associations include violaxanthin and neoxanthin content, abscisic acid concentration, root morphology, seed storage protein accumulation, and photooxidative stress tolerance. Studies of related genes in other species link the family to neoxanthin biosynthesis and synthesis.