 The study found evidence suggesting that fungi could be an important evolutionary hub for RNA viruses and viroid-like elements. Fungi was shown to contain both viroid-like elements and mitochondrial-like fungal viruses, which suggests that they could have played a key role in the evolution of RNA viruses and viroid-like elements. This article was authored by Marco Forgia, Beatriz Navarro, Stephanie Adeguino, and others.