PAP1 — Brassica oleracea var. botrytis

Summary

BoPAP1 (BOLND125_C01P056030.1) on cauliflower chromosome 1 encodes a protein with AUX/IAA and PB1-like domains and DNA-binding transcription factor activity, SUMO transferase activity, SUMO binding, kinase binding, identical protein binding, protein homodimerization activity, and protein binding. The gene is associated with auxin and jasmonic acid signalling, sumoylation, and the regulation of anthocyanin, flavonoid and proanthocyanidin biosynthesis. It is linked to pigmentation, flower colour, anthocyanin accumulation, leaf senescence, floral volatile production, nematode resistance, osmotic stress tolerance, root growth, pollen development, and shoot apical meristem specification and development. The encoded protein localises to the nucleus and cytosol and is associated with responses to cold, abscisic acid and auxin. Studies of related genes in other species link the family to leaf curling, plant height, germination rate, cytokinin content, auxin sensitivity, seed maturation, phosphate starvation response, herbivore resistance and Fusarium wilt resistance.