T9aO — Lactuca sativa

Summary

LsGA3OX1 (T9aO) on chromosome 2 of garden lettuce encodes a 2-oxoglutarate-dependent dioxygenase with gibberellin 20-oxidase, 4-coumaroyl 2'-hydroxylase, and ACC oxidase activities. The gene is associated with gibberellin biosynthesis, coumarin and phenylpropanoid anabolism, ethylene anabolism, and paclitaxel anabolism. It is linked to root hair elongation, seed germination, fruit ripening, and responses to jasmonic acid, light stimulus, fungi, and fungal molecules. The encoded protein localises to the endoplasmic reticulum and cytoplasm. Studies of related genes in other species link the family to plant height, stem elongation, stem length, fruit firmness, and floral organ number.