NAC5 — Phaseolus vulgaris

Summary

PHAVU_009G125900, designated PvNAC5 on chromosome 9 of French bean (Phaseolus vulgaris), encodes a NAC-domain transcription factor that localises to the nucleus and binds sequence-specific DNA. The gene is associated with reproductive structure development, anther and pollen development, root development, and post-embryonic development. It has been linked to the regulation of defence response to fungi, responses to wounding, cold, and hypoxia, as well as activation of salinity response and downregulation of abscisic acid-mediated signalling. Associations with seed size and proline content have been noted. Studies of the Arabidopsis relative ATAF1 link the family to leaf senescence, drought resistance, pathogen resistance, thermomorphogenesis, and brassinosteroid catabolism, while related genes in other species are associated with grain protein content, root dry weight, and salt tolerance.