Hi,
According to this side only the following species are supported for topGO and KEGG:
| org.Ag.eg.db | Anopheles | |
| org.Bt.eg.db | Bovine | |
| org.Ce.eg.db | Worm | |
| org.Cf.eg.db | Canine | |
| org.Dm.eg.db | Fly | |
| org.Dr.eg.db | Zebrafish | |
| org.EcK12.eg.db | E coli strain K12 | |
| org.EcSakai.eg.db | E coli strain Sakai | |
| org.Gg.eg.db | Chicken | |
| org.Hs.eg.db | Human | |
| org.Mm.eg.db | Mouse | |
| org.Mmu.eg.db | Rhesus | |
| org.Pt.eg.db | Chimp | |
| org.Rn.eg.db | Rat | |
| org.Ss.eg.db | Pig | |
| org.Xl.eg.db | Xenopus |
How is possible to use topGO and KEGG with de-novo species?
Thank you in advance

topGO can be used with other organism if you provide your own mapping from gene to GO, see the vignette and the documentation