DTA1 — Solanum lycopersicum

Summary

SlDTA1 (SOLYC05G053340.4) encodes a 2-oxoglutarate-dependent dioxygenase with gibberellin 2-oxidase, 3-beta-dioxygenase and 20-oxidase activities, placing it at the centre of gibberellin metabolism. The gene is associated with gibberellin catabolism and biosynthesis, as well as auxin and salicylic acid breakdown, cytokinin anabolism, flavonoid, phenylpropanoid and cell wall polysaccharide metabolism, and responses to red or far-red light. It has been linked to a wide range of agronomic traits including fruit weight, size, firmness and shape, stem elongation and diameter, leaf dimensions, root length, photosynthetic rate, sugar content, seed longevity, maturation and germination rate, drought tolerance, and ethylene sensitivity. Phenotypic associations include plant height, hypocotyl elongation, lateral branching, axillary bud formation, parthenocarpic fruit development and seed dormancy. Studies of related genes in other species link the family to somatic embryo production and seed germination.