AGL2 — Arabidopsis thaliana

Summary

AT5G15800 (AGL2/SEPALLATA1) in Arabidopsis thaliana encodes a MADS-box transcription factor containing MADS-box and K-box domains, with annotated activities including transcription regulator activity, sequence-specific DNA binding, and protein dimerization activity. This gene is associated with floral organ identity and formation, maintenance of floral organ identity, organ induction, and regulation of double fertilization. It is linked to numerous floral traits including carpel shape, sepal morphology, petal number, stamen number, floral organ length and size, flower morphology, and silique fruit morphology. Additional associations include seed coat hardness and color, fruit abscission, fruit ripening, leaf margin morphology, axillary bud morphology, and the vegetative-to-reproductive phase transition. The gene is also associated with cellular water homeostasis, abscisic acid breakdown, release of seed from dormancy, and response to biotic stimuli. Studies of related genes in other species link the family to fruit ripening, leaf and root development, plant height, and sepal growth.