CKX9 (TRAESCS1B02G248700) — triticum aestivum

Summary

TRAESCS1B02G248700 (symbol CKX9, also known as TaCKX6) on bread wheat chromosome 1B encodes a cytokinin dehydrogenase (EC 1.5.99.12) with FAD binding and redox activity, belonging to the cytokinin dehydrogenase FAD/cytokinin-binding domain family. The gene is associated with cytokinin breakdown, metabolism, signaling, and anabolism, as well as meristem, inflorescence, and seed development, stomatal complex morphogenesis, and phosphoglycerate transmembrane transport. It has been linked to grain number, grain weight, photosynthetic rate, leaf morphology, chloroplast development, flowering time, and disease tolerance. The encoded protein localises to plastid inner membrane, chloroplast envelope, ER lumen, vacuole, and cytosol. Studies of related genes in other species connect the family to grain yield, thousand grain weight, root and shoot architecture, salinity tolerance, and panicle size.