CBL1 — Oryza sativa Japonica

Summary

OsCBL1 (OS02G0480466) on rice chromosome 2 encodes a calcineurin B-like protein with calcium ion sensor activity, methylthioadenosine nucleosidase activity, and protein kinase regulator activity. It is associated with monoatomic ion homeostasis, regulation of potassium transport, cellular responses to nitrogen levels and potassium starvation, raffinose anabolism, and phytoalexin biosynthesis. The gene has been linked to drought stress response, salt tolerance, grain and panicle traits, seedling growth, and phosphorus, nitrogen, calcium, and nitrate responses in rice. Additional associations include spot blotch, leaf yellowing tolerance, alkali soil sensitivity, root system morphology, vegetative vigor, iron content, photoperiod sensitivity, submergence tolerance, and temperature stress response. Related genes in other species connect it to salt and osmotic stress tolerance, potassium and nitrate deficiency responses, cold tolerance, seed oil content, and photoperiodic flowering.