AP1 — Brassica oleracea

Summary

BoAP1 (AP1, AGL7) on cabbage chromosome 2 encodes a protein with a K-box domain and is annotated as having RNA polymerase II-specific DNA-binding transcription factor activity, transcriptional co-regulator activity, chromatin binding, and histone binding. It is associated with floral whorl development, floral meristem identity, fruit development, and the regulation of proanthocyanidin anabolism and abscisic acid breakdown. The gene is linked to numerous agronomic traits including fruit shattering, seed color, flower and carpel morphology, inflorescence size, leaf margin serration, stem diameter, and boron and potassium sensitivity. It also connects to release of seed from dormancy, detection of cytokinin stimulus, and upregulation of DNA repair. Studies of related genes in other species link the family to petal and stamen identity, seed yield, pod shatter resistance, leaf longevity, and temperature-responsive flowering.