RT info:eu-repo/semantics/article T1 Residual effects caused by a past mycovirus infection in Fusarium circinatum A1 Zamora Ballesteros, Cristina A1 Wingfield, Brenda D. A1 Wingfield, Michael J. A1 Martín García, Jorge A1 Díez Casero, Julio Javier K1 Pinos - Enfermedades y plagas K1 Hongos - Enfermedades y plagas K1 Hongos patógenos K1 ARN K1 Bosques y silvicultura K1 Trees - Diseases and pests K1 3106 Ciencia Forestal AB Mycoviruses are known to be difficult to cure in fungi but their spontaneous loss occurs commonly. The unexpected disappearance of mycoviruses can be explained by diverse reasons, from methodological procedures to biological events such as posttranscriptional silencing machinery. The long-term effects of a virus infection on the host organism have been well studied in the case of human viruses; however, the possible residual effect on a fungus after the degradation of a mycovirus is unknown. For that, this study analyses a possible residual effect on the transcriptome of the pathogenic fungus Fusarium circinatum after the loss of the mitovirus FcMV1. The mycovirus that previously infected the fungal isolate was not recovered after a 4-year storage period. Only 14 genes were determined as differentially expressed and were related to cell cycle regulation and amino acid metabolism. The results showed a slight acceleration in the metabolism of the host that had lost the mycovirus by the upregulation of the genes involved in essential functions for fungal development. The analysis also revealed a weak expression in the annotated genes of the RNA silencing machinery. To our knowledge, this is the first time that a potential residual effect on the host transcriptome caused by the past infection of a mycovirus is reported. PB MDPI SN 1999-4907 YR 2020 FD 2020 LK https://uvadoc.uva.es/handle/10324/58906 UL https://uvadoc.uva.es/handle/10324/58906 LA eng NO Forests, 2021, Vol. 12, Nº. 1, 11 NO Producción Científica DS UVaDOC RD 24-nov-2024