AP2 — Brassica napus

Summary

BnAP2 (AP2) on chromosome A03 of oilseed rape encodes a DNA-binding transcription factor with an AP2/ERF domain, possessing transcription corepressor activity, cis-regulatory region binding, and protein homodimerization activity. It localizes to the nucleus, cytoplasm, and transcription regulator complex. The gene is associated with numerous biological processes including vitamin B6 and A metabolism, carotenoid breakdown, upregulation of photosynthesis, phloem sucrose loading, seed abscission, and petal formation. It is linked to traits such as seed weight, seed oil and protein accumulation, biomass yield, drought tolerance, submergence tolerance, chlorophyll content, plant height, root traits, and flowering time. Related genes in other species are associated with floral organ identity, meristem determinacy, seed development, and Fusarium wilt resistance.