NAC2 — Cicer arietinum

Summary

GmNAC2, a NAC-domain transcription factor on chickpea chromosome 4, encodes a DNA-binding protein with transcription activator and coactivator activity, protein homodimerization activity, and histidine kinase binding. It localizes to the nucleus, cytoplasm, endoplasmic reticulum, and plasmalemma. The gene is associated with regulation of DNA-templated transcription, ABA and gibberellic acid signaling, salicylic acid-mediated signaling, positive regulation of leaf senescence, regulation of ROS metabolism, nitrogen utilization, seed dormancy, and phloem transport. It is linked to traits including grain protein content, root dry weight, leaf water potential, anthocyanin content, seed set percent, plant male sterility, pollen fertility, photosynthetic ability, and stomatal opening. Studies of related genes in other species connect the family to chloroplast biogenesis and development, age-related resistance, and susceptibility to hemibiotrophs.