[1] The presence of tRNA-like structures has been demonstrated in many plant virus RNA genomes.
These tRNA-like structures are linked to regulation of plant virus replication.
[1] tRNA-like structures mimic some tRNA function, such as aminoacylation.
For example, valine binds to the tRNA-like structure of the turnip yellow mosaic virus genome whilst tyrosine binds to the tRNA-like structure of the barley stripe mosaic virus genome.
They also act as 3'-translational enhancers[3] and regulators of minus strand synthesis.