NAC57 — Cicer arietinum

Summary

NAC57 (NAC4) on chickpea chromosome 7 encodes a NAC-domain protein with sequence-specific DNA binding, transcription cis-regulatory region binding, and protein homodimerization activity. It localises to the nucleus and endoplasmic reticulum. The gene is associated with responses to abscisic acid, ethylene, gibberellin, and auxin signalling, as well as salinity response, iron ion starvation, leaf senescence, seed development, and regulation of endosperm development. Associations also include abscisic acid homeostasis, defense response, and response to absence of light. Phenotypic links connect NAC57 to lateral root growth, nitrate-responsive gene expression, salt stress response, hypersensitive response cell death, and silique growth. Studies of related genes in other species link the family to drought tolerance, seed weight, protein content, root length, lateral root number, and iron deficiency tolerance.