2CPA — Daucus carota subsp. sativus

Summary

DCAR_013432 (Dc2CPA) on carrot chromosome 4 encodes a thioredoxin-dependent peroxiredoxin (EC 1.11.1.24) with a peroxiredoxin_C domain and AhpC/TSA family signature. The gene is associated with brassinosteroid breakdown, cellular oxidant detoxification, and negative regulation of the reductive pentose-phosphate cycle and stomatal complex development. It is linked to maintenance of seed dormancy, response to carbon dioxide, and protein proline isomerization. The product localizes to the thylakoid lumen and chloroplast thylakoid. Associations with agronomic traits include seed yield, biomass yield, photosynthetic ability, relative growth rate, leaf morphology, and responses to biotic stress, aphids, viral disease, UV-B light, copper, zinc, and jasmonic acid. Studies of related genes in other species link the family to seed dormancy, germination, and abiotic stress tolerance.