DREB19 — Solanum lycopersicum

Summary

SlDREB19 (SOLYC06G050520.3) on tomato chromosome 6 encodes a DNA-binding transcription factor of the AP2/ERF domain superfamily. It is associated with diverse biological processes including flower formation, brassinosteroid metabolism, secondary metabolite biosynthesis, pigment and hormone anabolism, ethylene signalling, and responses to water, heat, aluminium and stress. The protein localises to the nucleus. SlDREB19 has been linked to several agronomically relevant traits: root architecture (root hair density and length, root branching, lateral root number, root number, root length), water use efficiency, stomatal resistance, proline and sugar content, chlorophyll and anthocyanin content, and salt tolerance. Studies of related genes in other species connect the family to heat tolerance and responses to salt, oxidative stress, high temperature and abscisic acid.