2015 July 11, “Cauliflower mosaic virus Transcriptome Reveals a Complex Alternative Splicing Pattern”, in PLOS ONE, →DOI:
In HIV-1 and foamy viruses, the polyadenylation signal (poly(A) signal) is found at both extremities of the viral progenome, in the redundant 5’ and 3’ long terminal repeats (LTRs).