NAC1 — Cicer arietinum

Summary

AhNAC1 (NAC1, NAM-B1) on chickpea chromosome 4 encodes a NAC-domain transcription factor with sequence-specific DNA binding and protein homodimerization activities. It localizes to the nucleus, cytoplasm, and endoplasmic reticulum. In chickpea, AhNAC1 is associated with abscisic acid signaling and homeostasis, regulation of leaf senescence, xylem development, anther and pollen development, endosperm development, and activation of the salinity response. It has been linked to traits including lateral and adventitious root number, root hair length, leaf size and shape, shoot growth angle, germination rate, flowering time, and plant stress responses. Studies of related genes in other species connect the family to leaf longevity, salt tolerance, xylem vessel formation, and dark-induced leaf yellowing, and to nodulation and shoot growth.