GA2OX1 — Lactuca sativa

Summary

LsGA2OX1 (GA2OX1) on chromosome 5 of garden lettuce encodes a 2-oxoglutarate dioxygenase with gibberellin 2-oxidase, 3-beta-dioxygenase and 20-oxidase activities, as well as flavanone 3-dioxygenase activity. It belongs to the DIOX_N and IPNS-like Fe2OG oxygenase domain families. The gene is associated with gibberellin biosynthesis, seed germination, response to red and far-red light, defense response to oomycetes, flavonoid anabolism, cellular response to hypoxia, and cytoplasmic localization. It has been linked to plant height, lateral branching, hypocotyl growth, shade avoidance suppression, anthocyanin accumulation, parthenocarpic fruit development, and gibberellin content. Studies of related genes in other species connect the family to tuberization, chilling and drought tolerance, fruit development and ripening, seed development, and root elongation.