ATR2 — Solanum lycopersicum

Summary

SOLYC08G076930.1 (ATR2/JAI1/MYC2) on tomato chromosome 8 encodes a protein with AIB/MYC-like, MYC/MYB_N, bHLH_dom and HLH_DNA-bd_sf domains, and is associated with BHLH transcription factor binding, histidine phosphotransfer kinase activity, MAPKK activity, phosphatase binding, ERK1, histidine kinase binding, transcription corepressor activity, promoter-specific chromatin binding, RNA polymerase II cis-regulatory region sequence-specific DNA binding, SUMO transferase activity, histone binding, SUMO binding, transcription coactivator activity, and protein tag. In tomato, the gene is linked to saline-alkali tolerance, chilling tolerance, Botrytis cinerea resistance, fruit quality, seed maturation, seedling growth, female fertility and nematode susceptibility. It is associated with jasmonate signaling pathways, including MYC induced transcription of JA induced genes and JAZ/MYC complexes, and with processes such as vitamin E metabolism, phytyl diphosphate anabolism, hydrogen peroxide metabolic process, chemotropism, activation of RNAi, and downregulation of photosynthesis. The gene localises to nuclear ubiquitin ligase, mediator and Golgi complexes, plasmodesmata and the preprophase band. Studies of related genes in other species link the family to glandular trichome formation, nicotine biosynthesis, drought tolerance, circadian rhythm, and resistance to