ARF — Cucumis melo

Summary

MELO3C026141.2, designated CmARF on melon chromosome 4, encodes a member of the small GTPase ARF/SAR family, a P-loop NTPase. The gene product is associated with multiple molecular functions including G protein activity, phosphatidylinositol kinase activity, phospholipase activator activity, actin binding, histone acetyltransferase activity, FMN binding, and blue light photoreceptor activity. It is linked to biological processes such as vesicle-mediated transport, Golgi organization, ER-to-Golgi transport, regulation of auxin metabolism, chloroplast accumulation movement, blue light signaling, phloem transport, and leaf vascular tissue pattern formation. The protein localizes to Golgi-associated vesicles, COPII-coated vesicles, the cis-Golgi network, early endosomes, and the ER membrane. CmARF is associated with agronomically relevant traits including biomass yield, water use efficiency, days to flowering, root mass density, disease tolerance, oxidative stress response, and low temperature stress response. Related genes in other species link the ARF family to phototropic growth, chloroplast relocation, stomatal aperture regulation, and fruit set.