AP2 — Beta vulgaris subsp. vulgaris

Summary

BvAP2 (BVRB_013350) on sugar beet chromosome 0453.scaffold00990 encodes a DNA-binding transcription factor with an AP2/ERF domain, functioning as a transcription corepressor that binds cis-regulatory regions and homodimerizes. In sugar beet, it is associated with regulation of flowering time, vernalization response, floral organ identity and abscission, seed development, starch biosynthesis, gibberellic acid homeostasis, and meristem maintenance. It localizes to the nucleus, cytoplasm, and transcription regulator complexes. The gene is linked to traits including flowering time, petal number, shoot apical meristem development, jasmonic acid content, photosynthetic rate, plant embryo development, organ identity, plant growth and development, and root morphology. Related genes in other species connect it to floral development, seed development, ovule number, and Fusarium wilt resistance, while sequence similarity links extend associations to traits such as drought sensitivity, submergence tolerance, starch yield, and leaf nitrogen content.