AP2 — Lactuca sativa

Summary

LsAP2 on lettuce chromosome 2 encodes a DNA-binding transcription factor with an AP2/ERF domain, and is annotated with transcription corepressor activity, cis-regulatory region binding, and protein homodimerization activity. The gene is associated with the regulation of flower development, floral organ identity and abscission, seed development and abscission, and the transition from vegetative to reproductive phase. It is linked to flowering time, leaf size, photosynthetic rate, root morphology, jasmonic acid content, and shoot apical meristem development. Additional associations include lycopene accumulation and fruit ripening, ethylene-responsive gene expression, inflorescence architecture, seed yield, and somatic embryogenesis. The gene localises to the nucleus, cytoplasm, and transcription regulator complex. Studies of related genes in other species connect it to seed development, ovule number, and flower development.