VP — Daucus carota subsp. sativus

Summary

DCAR_014909, also known as DcVP, encodes a PPase-energised H-pump with proton-translocating pyrophosphatase activity (EC 7.1.3.1) and inorganic diphosphatase activity. This carrot gene on chromosome 4 is associated with vacuolar and endomembrane localisation, including the tonoplast and Golgi cis cisterna. It has been linked to proton transmembrane transport, establishment of transmembrane electrochemical gradients, auxin polar transport, sucrose metabolism, cell wall pectin metabolism, and regulation of starch biosynthesis. Associations with agronomically relevant traits include leaf length, biomass yield, low temperature stress response, stomatal opening, abscisic acid sensitivity, and salt tolerance. The gene is also connected to root growth, fruit development, transplant survival, phosphate transport, and stress tolerance. Studies of related genes in other species link the family to drought tolerance, phosphorus deficiency tolerance, and grain yield.