BR6OX — Solanum lycopersicum

Summary

SlBR6OX, encoded by tomato gene SOLYC02G089160.3 on chromosome 2, is a cytochrome P450 monooxygenase with brassinolide synthase, steroid 22S-hydroxylase and fatty acid 2-hydroxylase activities. It is associated with brassinosteroid anabolism, sterol metabolism, gibberellin metabolism, chlorophyll metabolism, lycopene anabolism, abscisic acid anabolism, protein farnesylation, demethylation, cell wall organization, petal development, megagametogenesis, and regulation of photosynthesis. The gene has been linked to fruit weight, fruit size, fruit shape, lycopene content, protein content, harvest index, shoot fresh weight, stem diameter, stem elongation, leaf size, root number, lateral root number, root length, coleoptile length, germination rate, pollen fertility, photosynthetic rate, net photosynthetic rate, drought tolerance, and salt tolerance. It localizes to the cytoplasmic vesicle membrane, ER, membrane, and mitochondria. Studies of related genes in other species link the family to grain quality, grain yield, and hypocotyl elongation.