ATR2 — Beta vulgaris subsp. vulgaris

Summary

BvATR2 (BVRB_5G105880) on sugar beet chromosome 5 encodes a protein of the AIB/MYC-like family with a bHLH domain, and has annotated molecular functions including RNA polymerase II cis-regulatory region sequence-specific DNA binding, transcription corepressor and coactivator activities, and histidine phosphotransfer kinase activity. It is associated with the jasmonate signaling pathway, specifically MYC-induced transcription of JA-induced genes and JAZ/MYC complex formation. The gene is linked to regulation of defense responses to insects, induced systemic resistance via ethylene signaling, drought recovery, positive regulation of seed maturation, and cellular responses to sulfur starvation. Associations also include traits such as seed protein content, submergence tolerance, root epidermal cell length, anther length, and metabolite content. Studies of related genes in other species connect the family to herbivore resistance, glucosinolate biosynthesis, and tolerance to aluminum and chilling stress.