RT Conference Proceedings T1 Characterization of the translational landscape of the plant-virus interaction A1 Sans-Coll, Gemma A1 Merchante-Berg, Catharina A1 Castillo-Garriga, Araceli A1 Rodríguez-Bejarano, Eduardo K1 Tomate - Enfermedades y plagas - Congresos K1 Virus fitopatógenos - Congresos AB Tomato yellow leaf curl virus (TYLCV) is responsible for a disease that causes massive damage to tomato crops around the world (Prasad et al., 2020). Due to its viral nature, it requires the host’s cellular machinery to be able to infect, which implies complex interactions between the virus and the plant. Most studies about this association are based on transcriptomics and interactomics, while translatomics analyses have, so far, been scarce. Understanding the translational machinery that is responsible for the production of viral proteins and, consequently, its propagation will allow to shed some light on these interactions and gain knowledge about the changes at the translational level that tomato plants experience upon infection. To that end, we are characterizing the translational landscape of the plant-virus interaction using the emerging technique Ribo-Seq. And to deepen our knowledge on the regulatory mechanisms involved in the translational response, two isogenic tomato lines, one resistant (the ty-5 mutant) and one susceptible (Santa Clara) to TYLCV are being employed. Ty-5 is a recessive mutation located on the Pelota gene, which is involved in the recycling phase of the translation cycle (Lapidot et al. 2015), so the study of this mutant will inform about the role of the translational machinery in the viral infection. In addition, and using RIP+MS, we are attempting to uncover the translational machinery associated to viral transcripts to determine if certain riboproteins or translation factors are preferred for the translation of viral transcripts.We will present the advances we have made regarding these objectives. YR 2022 FD 2022-09-14 LK https://hdl.handle.net/10630/25153 UL https://hdl.handle.net/10630/25153 LA eng NO The authors are grateful to Rafael Fernández-Muñoz (IHSM) for sharing the ty-5 and Santa Clara tomato seeds. Thiswork is funded by Grant P18-RT-1218 from the Junta de Andalucía to CM and ERB, a RYC-2017-1218 to CM and the“Plan Propio” from the Universidad de Málaga.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 26 ene 2026