AP2 — Brassica napus

Summary

BnAP2 (DARMORV10_C07P62260.1) on chromosome C07 of oilseed rape encodes a protein with an AP2/ERF DNA-binding domain, annotated with DNA binding, transcription cis-regulatory region binding, transcription corepressor activity, and protein homodimerization activity. It is associated with the regulation of seed development, floral organ abscission, seed abscission, phloem sucrose loading, upregulation of photosynthesis, chlorophyll metabolism, and vitamin A and B6 metabolism. The gene is linked to numerous agronomic traits including seed weight, seed protein accumulation, starch content, sucrose content, plant height, root morphology, drought tolerance, submergence tolerance, heterosis, and germination rate. It has also been connected to floral development, flowering time, inflorescence architecture, somatic embryogenesis, and photoassimilate translocation. Studies of related genes in other species link the family to seed development, flower development, ovule number, and Fusarium wilt resistance.