DTA1 — Lactuca sativa

Summary

LsDTA1 (GA2OX4, GA2OX2, GA2OX6) on lettuce chromosome 6 encodes a 2-oxoglutarate-dependent dioxygenase with gibberellin 2-oxidase, 3-beta-dioxygenase, 20-oxidase and 2'-deoxymugineic-acid 2'-dioxygenase activities, and belongs to the IPNS-like Fe2OG oxygenase family. The gene is associated with gibberellin catabolism and biosynthesis, coumarin anabolism, responses to iron(III), red or far-red light, light stimulus, and molecules of fungal origin, and localises to the cytoplasm. It has been linked to ethylene sensitivity, photosynthetic rate, hypocotyl elongation, seed dormancy, axillary bud formation, lateral branching, and parthenocarpic fruit development. Studies of related genes in other species connect the family to somatic embryo production, gibberellin metabolism, and seed germination.