AP1C — Daucus carota subsp. sativus

Summary

DCAR_015919 (AP1C, also known as DcAP1C) on carrot chromosome 4 encodes a K-box domain-containing transcription factor with RNA polymerase II-specific DNA-binding and transcription corepressor activities. This gene is associated with the regulation of developmental processes, including maintenance of inflorescence and floral meristem identity, floral organ senescence, abscission, and the timing of the vegetative-to-reproductive phase transition. It is linked to auxin polar transport regulation, root meristem size, and vascular tissue pattern formation. The encoded protein localizes to the nucleus, cytosol, and nucleolus. Associations with traits include flowering time, photoperiod sensitivity, root development, leaf senescence, drought tolerance, cold tolerance, anthocyanin content, photosynthetic rate, and responses to high temperature and UV light. Studies of related genes in other species link the family to floral transition, meristem identity, and stress responses.