B4 — Brachypodium distachyon

Summary

BdB4 (BRADI_1G28950V3) on Brachypodium distachyon chromosome 1 encodes a dual-specificity protein kinase with serine/threonine and tyrosine kinase domains, a PB1 domain, and blue light photoreceptor activity. It is associated with energy homeostasis, regulation of photosynthesis, photorespiration, the MAPK cascade, auxin signaling, sucrose metabolism, lignin anabolism, reactive oxygen species regulation, leaf senescence, floral meristem size and organ number, and flowering time. The protein localizes to the membrane, plasma membrane, cytoplasm, and nucleus. Studies of related genes in other species link the family to wheat leaf rust disease response, anthesis time, and seed germination.