TK — Solanum tuberosum

Summary

PGSC0003DMG400022088, designated StTK on potato chromosome 10, encodes a transketolase. The gene product is annotated with transketolase activity and also with red/far-red light photoreceptor activity, histidine kinase activity, and sequence-specific DNA binding, and localises to plastids, chloroplast thylakoid membranes, and nuclear bodies. StTK is associated with the reductive pentose-phosphate cycle, starch and sucrose anabolism, the mevalonate pathway, phytoalexin biosynthesis, and TOR signalling. The gene has been linked to yield, biomass, tuber size, photosynthetic rate, quantum yield, reducing sugar content, phosphorus uptake, and responses to light, photoperiod, gibberellic acid, jasmonic acid, and glyphosate. Related genes in other species are linked to carbon metabolism, circadian rhythm, photomorphogenesis, starch synthesis, chilling tolerance, and tuber yield.