AP3 — Brassica juncea

Summary

BJUB08G06230S (BjAP3, AP3) on Indian mustard chromosome B08 encodes a MADS-box transcription factor containing MADS-box and K-box domains, with DNA-binding and transcription regulatory activity. It is associated with specification of floral organ identity, particularly petal and stamen identity, as well as maintenance of floral meristem identity and floral organ patterning. The gene has been connected to numerous floral traits including petal number and morphology, stamen morphology and length, carpel shape, flower development, inflorescence morphology, and days to flowering. Additional associations include seed longevity, seed coat development, mucilage extrusion, response to silver ion and actidione, cellular osmotic response, activation of heat stress response, auxin sensitivity, jasmonic acid content, root length, and cytoplasmic male sterility. The protein localises to the nucleus, cytosol, plasmodesmata, and endosperm protein body.