AGL2 — Asparagus officinalis

Summary

A4U43_C06F19850 (symbol AGL2, also known as AoAGL2) on asparagus chromosome 6 encodes a K-box domain-containing protein with transcription regulator activity, including DNA-binding transcription factor activity, transcription coactivator and corepressor activities, and histone H3K27me2/H3K27me3 demethylase activity. The gene is associated with the maintenance of floral organ identity, regulation of double fertilization, negative regulation of seed maturation, release of seed from dormancy, fruit abscission, and cellular water homeostasis. It has been linked to numerous traits including floral organ length and morphology, seed coat hardness and color, carpel shape, leaf shattering, fruit ripening, plant male sterility, seed longevity, and osmotic adjustment capacity. Studies of related genes in other species connect the family to floral meristem determination, fruit ripening, drought tolerance, and seed oil accumulation.