MRH1 — Zea mays

Summary

ZmMRH1 (ZM00001EB120360) on maize chromosome 3 encodes a protein with transmembrane receptor protein serine/threonine kinase activity, protein kinase activity, ATP binding, coreceptor activity, and histone H2AS1 kinase activity. It is associated with root hair cell differentiation, membrane depolarization, cell polarization, stamen formation, exocytosis, endocytosis, shade avoidance, and protein acetylation. The protein localizes to the plasma membrane, endomembrane system, early and late endosome membranes, multivesicular body membrane, pollen tube, and cytoplasm. The gene is linked to grain yield, kernel number per row, grain number, anthesis time, fruit width, fruit length, fruit shape, root number, pollen fertility, salt response, and liguleless traits. Studies of related genes in other species connect the family to reproductive isolation, seed germination, and root hair phenotypes.