AP1 (BOLND125_C06P041230.1_BOLND125_V1) — Brassica oleracea var. botrytis

Summary

BoAP1 (AP1, AGL7) on cauliflower chromosome 6 encodes a MADS-box transcription factor with a K-box domain, possessing RNA polymerase II-specific DNA-binding transcription factor activity, transcription coactivator and corepressor activities, chromatin and histone binding, and protein dimerization activity. It is associated with floral whorl development, bract morphogenesis and formation, regulation of miRNA processing, abscisic acid breakdown, regulation of proanthocyanidin anabolism, and release of seed from dormancy. The gene is linked to numerous traits including floral organ number and morphology, fruit shape, shattering and yield, seed color, leaf margin serration, stem diameter, inflorescence size, and boron and potassium sensitivity. Studies of related genes in other species connect the family to floral meristem identity, fruit development, cauline leaf development, and pod shatter resistance.