Table 3. Examples of positive and negative viral-cell associations.
| Taxon 1 | Taxon 2 | ρ | q | ρ' | q' |
|---|---|---|---|---|---|
| Co-occurrence | |||||
| Viruses; dsDNA viruses, no RNA stage; Mimiviridae | Eukaryota; stramenopiles; Oomycetes | 0.949 | 2.22E-05 | 0.939 | 1.7E-02 |
| Viruses; dsDNA viruses, no RNA stage; Iridoviridae; Lymphocystivirus; unclassified Lymphocystivirus | Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae | 0.883 | 1.44E-03 | — | — |
| Viruses; unclassified phages; environmental samples | Bacteria; Cyanobacteria; environmental samples | 0.864 | 2.92E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Caudovirales; Siphoviridae | Eukaryota; Alveolata; Apicomplexa; Aconoidasida; Piroplasmida | 0.861 | 3.26E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Herpesvirales; Herpesviridae; Gammaherpesvirinae | Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales; Thiotrichaceae | 0.853 | 4.20E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Phycodnaviridae | Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales; Alteromonadales genera incertae sedis | 0.838 | 6.30E-03 | — | — |
| Viruses; dsRNA viruses; Reoviridae; Sedoreovirinae; Mimoreovirus | Eukaryota; Metazoa; Chordata; Craniata | 0.834 | 6.98E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Herpesvirales; Herpesviridae; Gammaherpesvirinae | Bacteria; Chloroflexi; Thermomicrobiales; Thermomicrobiaceae; Thermomicrobium | 0.830 | 7.61E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Herpesvirales; Herpesviridae; Gammaherpesvirinae | Bacteria; Proteobacteria; Magnetococcus | 0.825 | 8.53E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Phycodnaviridae; unclassified Phycodnaviridae | Eukaryota; Viridiplantae; Chlorophyta; Prasinophyceae; Mamiellales | 0.821 | 9.36E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Herpesvirales; Herpesviridae; Gammaherpesvirinae | Bacteria; Acidobacteria; Solibacteres; Solibacterales; Solibacteraceae | 0.820 | 9.51E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Herpesvirales; Herpesviridae; Gammaherpesvirinae | Bacteria; Proteobacteria; Deltaproteobacteria; Desulfobacterales; Desulfobacteraceae | 0.820 | 9.51E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Caudovirales; Myoviridae; T4-like viruses | Bacteria; Cyanobacteria; environmental samples | 0.819 | 9.71E-03 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Caudovirales; Podoviridae; Autographivirinae | Bacteria; Cyanobacteria; environmental samples | 0.817 | 1.02E-02 | — | — |
| Viruses; dsDNA viruses, no RNA stage | Eukaryota; Alveolata; Ciliophora; Intramacronucleata; Spirotrichea | 0.803 | 1.36E-02 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Caudovirales; Podoviridae; N4-like viruses | Bacteria; Firmicutes; Clostridia; Clostridiales; Peptococcaceae | 0.802 | 1.38E-02 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Caudovirales | Eukaryota; Alveolata; Apicomplexa; Aconoidasida; Piroplasmida | 0.802 | 1.39E-02 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Viruses; dsDNA viruses, no RNA stage; unclassified dsDNA viruses | Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales; SAR11 cluster | 0.801 | 1.39E-02 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Phycodnaviridae; Phaeovirus | Eukaryota; stramenopiles; Actinophryidae; Actinophrys | 0.801 | 1.39E-02 | — | — |
| Viruses; dsDNA viruses, no RNA stage; Phycodnaviridae; unclassified Phycodnaviridae | Eukaryota; Viridiplantae; Chlorophyta; Prasinophyceae; environmental samples | 0.800 | 1.42E-02 | — | — |
| Mutual exclusion | |||||
| Viruses; dsDNA viruses, no RNA stage; Caudovirales; Myoviridae; phiKZ-like viruses | Eukaryota; Euglenozoa; Kinetoplastida; Trypanosomatidae; Leishmania | −0.742 | 3.32E-02 | —0.804 | 1.72E-02 |
| Viruses; dsDNA viruses, no RNA stage; Iridoviridae; Ranavirus | Bacteria; candidate division OP8; environmental samples | −0.751 | 2.95E-02 | −0.695 | 3.83E-02 |
| Viruses; dsDNA viruses, no RNA stage; Caudovirales; Myoviridae; phiKZ-like viruses | Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae | — | — | −0.659 | 2.95E-02 |
| Viruses; dsDNA viruses, no RNA stage; Caudovirales; Myoviridae; phiKZ-like viruses | Bacteria; Spirochaetes; Spirochaetales; Spirochaetaceae | — | — | −0.715 | 3.95E-02 |
Abbreviation: dsDNA, double-stranded DNA.
Statistical significance of taxon associations was assessed by two methods. ρ (Spearman's correlation coefficient) and q (false discovery rate) were calculated by the first method and ρ' (Spearman's correlation coefficient) and q' (false discovery rate) were calculated by a more stringent second method. See Materials and methods for details.