Jasmonate ZIM Domain Protein () Gene Increases Resistance to in Tomato.

Pers. is a holoparasitic plant that severely reduces tomato ( L.) production in China. However, there is a lack of effective control methods and few known sources of genetic resistance. In this study, we focused on key genes in the family, comparing the family in (L. Heynh.) to the tomato genome. After identifying the family members in , we performed chromosomal localization and linear analysis with phylogenetic relationship analysis of the family. We also analyzed the gene structure of the gene family members in tomato and the homology of the genes among the different species to study their relatedness. The key genes for resistance were identified using VIGS (virus-induced gene silencing), and the parasitization rate of silenced tomato plants against increased by 47.23-91.13%. The genes were localized in the nucleus by subcellular localization. Heterologous overexpression in showed that the key gene had a strong effect on the parasitization process of , and the overexpression of the key gene reduced the parasitization rate of 1.69-fold. Finally, it was found that the gene can positively regulate the hormone content in tomato plants and affect plant growth and development, further elucidating the function of this gene.