Researchers found evidence for the repeated HT of four different families of Helitrons in an unprecedented array of organisms, including mammals, reptiles, fish, invertebrates, and insect viruses.
12.
Picornavirus genomes contain only a single open reading frame ( ORF ) which is translated into a single polyprotein, but CrPV, as well as several other related insect viruses, is translated from two ORFs.