A newly discovered 5' translation-regulatory element with a unique three stem-loop structure in sweet potato feathery mottle virus.
Sweet potato feathery mottle virus (SPFMV), a member of the Potyviridae family and Potyvirus genus, severely affects the yield and quality of sweet potato. Internal ribosome entry site (IRES) elements were first identified in animal RNA viruses and have since been identified in plant RNA viruses and eukaryotic mRNAs. H...