PP5 — Brassica oleracea var. botrytis

Summary

BoPP5, encoded by the gene BOLND125_C04P075870.1 on cauliflower chromosome 4, is a protein serine/threonine phosphatase with tetrapyrrole binding, red/far-red light photoreceptor activity, phosphorelay sensor kinase activity, and histidine kinase activity. It is associated with light absorption, downregulation of chlorophyll anabolism, chloroplast-nucleus signaling, responses to red and far-red light, abscisic acid metabolism, circadian regulation of calcium ion oscillation, and photoacclimation. The protein localizes to the nuclear membrane, nuclear envelope, ER membrane, plasmodesma, and cytosol. BoPP5 is linked to agronomically important traits including grain yield, biomass yield, panicle number, flower diameter, leaf angle, photosynthetic ability, photoperiod-sensitive flowering time, transpiration rate, and glyphosate sensitivity. Studies of related genes in other species connect the family to thermotolerance, light signaling, and grain yield.