ABI5 — Brassica juncea

Summary

BJUB08G14270S, also known as ABI5, encodes a bZIP transcription factor belonging to the BZIP46-like family, with sequence-specific DNA binding and transcription cis-regulatory region binding activities. In Indian mustard (Brassica juncea), this gene is associated with abscisic acid (ABA) signaling, including the upregulation of ABA-mediated signaling and responses to thirst, salinity, and cold. It is linked to seed germination, seedling development, pollen maturation, and salinity response. The encoded protein localizes to the nucleus and exhibits protein homodimerization activity. ABI5 is also associated with the salt tolerance trait SALTTL. Studies of related genes in other species link the family to seed dormancy, though this is not established for B. juncea.