Graft union of rootstock and scion in Camellia oleifera
To elucidate the molecular mechanisms underlying graft union formation in Camellia oleifera, a major woody oil crop in China, transcriptome sequencing was performed on samples from two graft combinations across five post-grafting stages. The two combinations included a close-genotype graft (CL18/CL18, scion and rootstock both derived from CL18 half-sib seeds) and a distantly related graft (CL18/CL53, CL53 scion grafted on CL18 half-sib rootstock).The sequencing data were used to identify differentially expressed genes involved in hormone signaling, cell wall remodeling, and cytoskeletal organization, and to analyze the correlation between transcriptome reprogramming and endogenous hormone dynamics during graft healing. These data will provide a basis for exploring the molecular and physiological basis of graft compatibility and early growth delay in woody plants, and serve as a resource for subsequent related research.