GPPS — Cucumis melo

Summary

MELO3C007109.2, designated CmGPPS (also known as GPS1, SPS1, SPS2, SPS3), encodes a polyprenyl diphosphate synthase with geranyltranstransferase, dimethylallyltransferase, farnesyltranstransferase, and all-trans-nonaprenyl-diphosphate synthase (geranyl-diphosphate specific) activities. The gene is associated with the biosynthesis of geranyl diphosphate, farnesyl diphosphate, geranylgeranyl diphosphate, terpenoids, carotenoids, plastoquinone, ubiquinone, and ethylene, as well as with monoterpene biosynthesis, isoprenoid metabolism, hexose and sucrose breakdown, starch metabolism, fruit development, and responses to herbivores and insects. It has been linked to fruit sweetness, fruit weight and size, sugar content, stem length and diameter, plant height, heterosis, photosynthetic rate, chloroplast development, jasmonic acid content, low temperature stress tolerance, root morphology, and arsenic concentration. The product localizes to plastids, chloroplast stroma, etioplasts, mitochondria, and cytosol. Related genes in other species are linked to photosystem II protection and plastochromanol-8 biosynthesis.