Additional file 12: of Formation of chimeric genes with essential functions at the origin of eukaryotes

Detailed origin of prokaryotic S-gene components. Fam: S-gene family, Cpt: component, Cluster: cluster number according to Fig. 4, Bacteria: number of hits from Bacteria, Archaea: number of hits from Archaea. For each S-gene component, the rank in the BLAST search and the taxonomic assignation of the 25 sequences with the best hits to that component were reported (Aci: Acidobacteria, Act: Actinobacteria, Aqu: Aquificae, Arm: Armatimonadetes, Bac: Bacteroidetes, Chl: Chloroflexi, Cre: Crenarchaeota, Cya: Cyanobacteria, Def: Deferribacteres, Dei: Deinococcus-Thermus, Eur: Euryarchaeota, Fir: Firmicutes, Fus: Fusobacteria, Gem: Gemmatimonadetes, Ign: Ignavibacteriae, Nit: Nitrospirae, Pla: Planctomycetes, Pro: Proteobacteria, Spi: Spirochaetes, Syn: Synergistetes, Ten: Tenericutes, Tha: Thaumarchaeota, The: Thermotogae, Ver: Verrucomicrobia, roo: Unknown). Red cells correspond to bacterial phyla while blue cells correspond to archaeal phyla. When only one S-gene component is described, the unrepresented S-gene components from the S-gene family are either exclusively found in photosynthetic eukaryotes, or have diverged too much to be confidently assigned to a prokaryotic group. (XLSX 1743 kb)