SOC1 — Arabidopsis thaliana

Summary

AT2G45660, also known as SOC1 or AGL20, encodes a MADS-box transcription factor containing a K-box domain. It is a DNA-binding transcription regulator with RNA polymerase II-specific activity and transcription corepressor activity, localizing to the nucleus, cytosol, and nucleolus. SOC1 is associated with the regulation of flowering time, floral organ formation, inflorescence meristem identity, and the vegetative-to-reproductive phase transition. It has been linked to seed yield, stem number, leaf area index, petal and sepal morphology, carpel number, and photoperiod-sensitive flowering. The gene is also connected to strigolactone, jasmonic acid, and brassinosteroid signaling pathways, as well as shoot gravitropism, nitrate import, chlorophyll a breakdown, and secondary growth. Related genes in other species are associated with drought tolerance, cold tolerance, and carbon starvation tolerance.