Fig 1.
Viruses contain hidden open reading frames (ORFs) in their genomes.
(A)Schematic diagram of the known ORFs and the predicted reverse ORFs (rORFs) in the viral positive-strand RNA (+RNA) and minus-strand RNA (−RNA) of positive-sense strand RNA (+ssRNA) viruses, respectively. (B) Schematic diagram of the known ORFs and the newly identified ORFs in the viral strand and the complementary strand of geminiviruses (ssDNA viruses). CxNV1, Culex narnavirus 1; PsV5, Puccinia striiformis virus 5; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; TuMV, turnip mosaic virus; TYLCV, tomato yellow leaf curl virus; TYLCTHV, tomato yellow leaf curl Thailand virus.