CYC1 — Daucus carota subsp. sativus

Summary

DCAR_009126, designated DcCYC1 on carrot chromosome 3, encodes a cyclin A/B-like protein with cyclin-box and cyclin-C-terminal domains. The product possesses cyclin-dependent protein serine/threonine kinase regulator activity, along with histone acetylase, SUMO transferase, and kinase activities, and localises to the nucleus, cytosol, cyclosome, CDK holoenzyme, and preprophase band. DcCYC1 is associated with mitotic cell cycle phase transition, G1/S transition, asymmetric cell division, guard mother cell division, and regulation of meiotic nuclear division. It has been linked to traits including plant cell size, biomass yield, leaf trichome density, flower and inflorescence development, root meristem development, anthocyanin content, and responses to gamma radiation, cytokinin, brassinosteroid, and abscisic acid. Studies of related genes in other species connect the cyclin B family to cell cycle control, root growth, biomass, and nematode feeding site development.