GA2OX1 — Lactuca sativa

Summary

LsGA2OX1 (GA2OX1) on chromosome 7 encodes a protein with domains including an IPNS-like_FE2OG_OXY, DIOX_N, and Oxoglu/Fe-dep_dioxygenase, and is annotated with multiple enzyme activities including gibberellin 2-oxidase activity and 2-oxoglutarate dioxygenase activity. The gene is associated with gibberellin biosynthesis, response to red or far red light, defense response to oomycetes, cellular response to hypoxia, and seed germination. It is linked to lateral branching, gibberellin content, parthenocarpic fruit development, hypocotyl growth, shade avoidance suppression, anthocyanin accumulation, plant height, root growth, seed dormancy, and hypocotyl elongation. Associations also include ethylene sensitivity, photosynthetic rate, and fruit set. Studies of related genes in other species link the family to tuberization, fruit development, chilling tolerance, and drought tolerance in potato and tomato, as well as seed development in Arabidopsis.