PDF1 — Camelina sativa

Summary

CsPDF1 (CSA14G016290) on Camelina sativa chromosome 14 encodes a protein with a PP2A regulatory subunit A domain and HEAT and ARM-type repeats. The gene product exhibits protein phosphatase regulator activity, protein serine/threonine phosphatase activity, calcium-dependent protein serine/threonine kinase activity, chaperone protein binding, DNA binding, ubiquitin-protein transferase activity, and other molecular functions. CsPDF1 is associated with regulation of phosphorylation, stomatal opening and closure, abscisic acid-mediated signaling, reactive oxygen species metabolism, negative regulation of leaf senescence, and other biological processes. It has been linked to numerous traits including seed yield, biomass yield, water use efficiency, carotenoid content, total soluble sugar content, brassinosteroid content and sensitivity, fruit quality, and responses to high temperature and osmotic stress. The protein localizes to the PP2A complex, nucleus, cytosol, plasma membrane, and spindle. Studies of related genes in other species link the family to cortical microtubule organization, cell elongation, stomatal development, floral transition, and carotenoid accumulation.