GA5 — Lactuca sativa

Summary

LsGA5, also known as GA20OX2, encodes a gibberellin 20-oxidase, a 2-oxoglutarate-dependent dioxygenase with flavanone 3-dioxygenase activity. In lettuce, this gene is associated with gibberellin signaling, responses to flooding, red or far-red light, and defense against oomycetes. It is linked to the regulation of growth, leaf and flower development, and flavonoid anabolism. The gene has been connected to numerous agronomic traits including plant height, flowering time, seed germination, leaf size, biomass, stem internode number, fruit set, parthenocarpy, and responses to salt stress, ethylene, and wind. Studies of related genes in other species link the family to gibberellin metabolism, stem and root growth, fruit development, and salt tolerance.