GRIP — Daucus carota subsp. sativus

Summary

DCAR_021833 (symbol GRIP, also known as NMCP1 or DcNMCP1) on carrot chromosome 6 encodes a CRWN-like nuclear matrix protein with GTP-binding and protein-binding activities. In carrots, this gene is associated with nuclear shape, as well as nuclear matrix organization and nucleus organization. It has been linked to diverse processes including Golgi vesicle transport, exocytosis, cell wall cellulose biosynthesis, response to abscisic acid, and regulation of cell growth. The protein localizes to the nuclear lamina, nuclear matrix, Golgi stack and membrane, trans-Golgi network, endosomes, plasmodesmata, and plant-type vacuoles. Associations with root morphology, anther morphology, meristem identity, auxin sensitivity, leaf adaxial-abaxial polarity, floral meristem determinacy, and somatic embryogenesis have been noted. Studies of related genes in other species link the family to plant development and auxin sensing.