GAL1 — Brassica oleracea var. botrytis

Summary

BoGAL1 (GAL1) on chromosome 5 of cauliflower encodes a protein with galactokinase activity, placing it in the GHMP kinase family. The gene is associated with carbohydrate phosphorylation, galactose metabolism, and protein binding. It is linked to the COP9 signalosome assembly and protein deneddylation, and localises to the cytosol and cytoplasm. Associations with salinity response and salt tolerance (SALTTL) are observed, as well as connections to UV light sensitivity. Phenotypic associations include anthocyanin accumulation in cotyledons, photomorphogenesis, dark purple seeds, and homozygous lethality. Studies of the Arabidopsis relative CSN7 link the family to COP9 signalosome stability and UV tolerance, while broader sequence similarity connections suggest possible links to heterosis.