That seems to be a different process, occurring at a different stage of expression - the link describes different ways eukaryotic mRNA can be spliced prior to translation; grandparent comment refers to a detail of how the translation process itself works with viral mRNA.
Specifically, that reference appears to be to one of apparently several mechanisms of non-canonical translation in viral RNA [1]:
> The focus is on the different translational strategies that RNA viruses employ for accessing multiple ORFs in mRNAs.
An "ORF", or "open reading frame", is a translatable sequence of bases, usually understood to begin immediately after a common "header" sequence at the start of an RNA strand. But viral genomes appear to have not even just one trick, but a whole bag of them, for getting host ribosomes to translate the same genome in multiple ways, as grandparent commenter describes. Which is really neat!
Also, it looks like I should've done some literature review before my own prior comment. Per [2], ribosome profiling - a technique which may be newer than my own experience in the field [3], and of which I was in any case unaware - has been used to show that eukaryotic RNAs likewise can and perhaps frequently do encode multiple ORFs which are routinely translated. Which is also really neat!
[3] What appears to be the seminal paper for modern ribosome profiling [4] was published in early 2014, more or less at the same time I left the organization where I might have heard about it.
Specifically, that reference appears to be to one of apparently several mechanisms of non-canonical translation in viral RNA [1]:
> The focus is on the different translational strategies that RNA viruses employ for accessing multiple ORFs in mRNAs.
An "ORF", or "open reading frame", is a translatable sequence of bases, usually understood to begin immediately after a common "header" sequence at the start of an RNA strand. But viral genomes appear to have not even just one trick, but a whole bag of them, for getting host ribosomes to translate the same genome in multiple ways, as grandparent commenter describes. Which is really neat!
Also, it looks like I should've done some literature review before my own prior comment. Per [2], ribosome profiling - a technique which may be newer than my own experience in the field [3], and of which I was in any case unaware - has been used to show that eukaryotic RNAs likewise can and perhaps frequently do encode multiple ORFs which are routinely translated. Which is also really neat!
[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3542737/
[2] https://academic.oup.com/nar/article/44/1/14/2499627
[3] What appears to be the seminal paper for modern ribosome profiling [4] was published in early 2014, more or less at the same time I left the organization where I might have heard about it.
[4] https://pubmed.ncbi.nlm.nih.gov/24468696/