D53 — Oryza sativa Japonica

Summary

OS11G0104300 (D53), also known as OsSMXL6, OsSMXL7, and OsSMXL8, encodes a strigolactone signaling regulator with ATP hydrolase activity, ATP binding, and protein binding functions, and is associated with protein folding chaperone activity. This rice gene on chromosome 11 is linked to strigolactone signaling and response, as well as auxin transport, cytokinin, abscisic acid, and carotenoid anabolism, sucrose metabolism, nitrate response, secondary thickening, shoot development, and DNA-dependent transcription. D53 is associated with tillering, dwarfism, panicle number and length, grain weight and yield, plant height, root length, shoot axis branching, and drought resistance. The protein localizes to the cytoplasm and nucleus. Related genes in other species link the gene family to leaf morphology, anthocyanin accumulation, seed dormancy, and drought tolerance.