GCP2 — Medicago truncatula

Summary

MTR_7G117050 (GCP2, MtGCP2) in barrel medic encodes a gamma-tubulin family protein with microtubule nucleator activity, gamma-tubulin binding, and GTPase activity. It is associated with meiotic and mitotic spindle organization, microtubule nucleation by the microtubule-organizing center, phragmoplast assembly, and cytoplasmic microtubule organization. The gene has been linked to numerous agronomic traits including seed coat morphology, floral organ number, anther morphology, adventitious root number, phosphorus uptake, root oxidative activity, shoot axis branching, biotic and abiotic stress responses, jasmonic acid and ethylene sensitivity, UV-B light sensitivity, osmotic response sensitivity, anthocyanin content, stomatal complex closure time, and low temperature stress response. Phenotypic associations include root morphogenesis, fertility, plant growth, cell division, microtubule organization, and male gametophyte development. Studies of related genes in other species link the family to gametophyte development, cytokinesis, and stress responses.