TK — Cucumis sativus

Summary

CSA_3G126240, also known as TK, encodes a protein with transketolase activity, red/far-red light photoreceptor activity, histidine kinase activity, and calcium ion binding. This cucumber gene on chromosome 3 is associated with the Calvin cycle, pentose-phosphate shunt, photorespiration, and regulation of photosynthesis, along with starch breakdown, abscisic acid metabolism, and circadian regulation of calcium oscillation. It has been linked to numerous agronomic traits including biomass yield, net photosynthetic rate, quantum yield, sucrose content, chilling tolerance, female flower ratio, photoperiod-sensitive flowering, and yield. The gene product localizes to the chloroplast thylakoid membrane, stroma, and envelope, as well as the nucleus and plasmodesmata. Related genes in other species are associated with carbon metabolism, circadian period, flowering time, and photosynthetic rate.