GOLS — Cucumis sativus

Summary

CsGOLS (CSA_5G601500) on cucumber chromosome 5 encodes an inositol 3-alpha-galactosyltransferase (EC 2.4.1.123) with transglycosidase activity, belonging to the glycosyltransferase family 8. The gene is associated with raffinose family oligosaccharide biosynthesis, galactose metabolism, carbohydrate storage, and phloem loading. It is linked to cellular responses to desiccation, cold, heat, high light intensity, oxidative stress, and abscisic acid, as well as induced systemic resistance and defense responses. Associations with sucrose content, photosynthetic rate, and traits such as cold response, drought tolerance, salt tolerance, fruit ripening, chlorophyll accumulation, and heat stress tolerance have been noted. The protein localizes to the Golgi complex, cytoplasm, and nucleus. Studies of related genes in other species link the family to grain yield, seed weight, seed longevity, and abiotic stress tolerance.