CAM — Triticum turgidum subsp. durum

Summary

TRITD6BV1G066900, designated TtCAM on durum wheat chromosome 6B, encodes a calmodulin-binding protein of the CBP60 family with DNA-binding transcription factor activity, calmodulin binding, and transcription coactivator activity. The gene is associated with CAM photosynthesis, regulation of salicylic acid biosynthesis, calcium signaling, defense responses, and oxidative stress responses. It has been linked to numerous agronomic traits including seed weight, water use efficiency, photosynthetic rate, stomatal resistance, flowering time, root morphology, leaf growth and development, anthocyanin content, abscisic acid sensitivity, and ovary, pistil, anther, and floral organ development. Localization evidence connects the product to the nucleus, cytosol, cytoplasm, plasma membrane, and plant-type vacuole. Studies of related genes in other species link the CBP60 family to plant immunity, nonhost resistance, organ size, seed size, and abscisic acid responsiveness.