Grafting is an important technique to improve stress tolerance and propagate plants. It is widely used in horticulture including species such as tomatoes and peppers. Despite its importance, grafts often fail due to incompatibility between species. To better understand graft success and failure, we will sequence. Based on the transcriptome, we aim to identify genes associated with cambium, phloem and xylem formation, as well as other factors for important for successful grafting, such as sugar, phytohormones and temperature. We will also identify genes that change expression in pepper grafts and compare these to Arabidopsis grafts to identify a conserved mechanism.