Table 2. Statistics of viruses found in sweet potato transcriptome annotations, estimated gene expression abundance.
| Virus name | Abbreviation | Genus | No. of Sequences | Total length (bp) | Identity (%) | Average expression levels (RPKM) | No. of read pairs |
| Sweet potato feathery mottle virus | SPFMV | Potyvirus | 47 | 22,302 | 100 | 50.99 | 46,434 |
| Sweet potato virus G | SPVG | Potyvirus | 5 | 2,781 | 100 | 14.79 | 1,680 |
| Northern cereal mosaic virus | NCMV-like | Cytorhabdovirus | 1 | 1,134 | 46 | 11.58 | 536 |
| Sweet potato virus B2 | SPVB2 | Potyvirus | 6 | 987 | 97 | 3.85 | 155 |
| Sweet potato latent virus | SwPLV | Potyvirus | 3 | 806 | 100 | 1.73 | 57 |
| Sweetpotato badnavirus B | SPBV-B | Badnavirus | 4 | 575 | 94 | 1.11 | 26 |
| Sweet potato virus 2 | SPV2 | Potyvirus | 3 | 419 | 100 | 1.40 | 24 |
| Sweetpotato badnavirus A | SPBV-A | Badnavirus | 2 | 250 | 97 | 1.57 | 16 |
| Mikania micrantha mosaic virus | MMMV | Fabavirus | 5 | 736 | 100 | 1.25 | 42 |
| Yam mosaic virus | YMV | Potyvirus | 1 | 230 | 94 | 5.11 | 48 |
| Turnip mosaic virus | TuMV-like | Potyvirus | 1 | 217 | 69 | 0.68 | 6 |
| Sunflower mosaic virus | SuMV | Potyvirus | 1 | 198 | 96 | 1.36 | 11 |
No. of Sequences means the viral transcripts detected in the vegetative transcriptome [34]. Total length means the sum of detected viral transcripts of each virus. Identity refers to sequence identities when similarity BLASTX search was conducted between assembled viral transcripts and NR database. YMV was further confirmed to be SPVG, and TuMV-like and SuMV were further confirmed to be SwPLV.