CRB — Cucumis melo

Summary

MELO3C012889.2 (symbol CRB, CmCRB) on melon chromosome 5 encodes a member of the 11S seed storage globulin family (Cupin 1 domain, RmlC-like jellyroll fold) with nutrient reservoir activity, IgG/IgE binding, and protein phosphorylated amino acid binding. The gene is associated with seed development, germination, and seed storage protein accumulation, as well as fruit development and ripening, flower and carpel/stamen development, sex determination, and abscission. It is linked to abscisic acid concentration, ethylene anabolism, xanthophyll metabolism, photoprotection, and regulation of superoxide release. Associations extend to violaxanthin and neoxanthin content, photosynthetic rate, root morphology, and hydraulic conductivity. The protein localizes to endosperm protein bodies, vacuoles, chloroplast envelope and stroma, LHCII, plasmodesmata, and the extracellular space. Related genes in other species are linked to neoxanthin biosynthesis and photooxidative stress tolerance, and parthenocarpy has been reported in cucumber.