ERD4 — Brassica juncea

Summary

BJUB03G20130S (ERD4, BjOSCA2.4) on Indian mustard chromosome B03 encodes a calcium-activated cation channel belonging to the CSC1/OSCA1-like family. The gene is associated with seed germination and response to thirst, and its product localises to the chloroplast membrane and plasmalemma. Associations with leaf number and drought tolerance have been noted. Related genes in other species link the OSCA2.4 family to osmotic stress sensing and calcium signalling, though this has not been established in Indian mustard.