IPT3 — Brassica oleracea var. botrytis

Summary

BoIPT3 (BOLND125_C04P030890.1_BOLND125_V1) on cauliflower chromosome 4 encodes a dimethylallyltransferase with tRNA dimethylallyltransferase, AMP dimethylallyltransferase, and ADP/ATP dimethylallyltransferase activities, and ATP binding. The protein localises to plastids, mitochondria, and the nucleus. It is associated with cytokinin and isopentenyl adenine biosynthesis, as well as tRNA modification. This gene has been linked to seed size, root system architecture, lateral root initiation, root thickening, plant height, lateral branching, trichome development, cell proliferation, and high light stress tolerance. Related genes in other species are associated with cytokinin biosynthesis, trans-zeatin biosynthesis, nitrogen metabolism, growth enhancement under elevated CO₂, root growth, shoot meristem size, cambial activity, and seed abortion with larger surviving seeds.