TABLE 1.
Results of chi-squared contingency tests of independence assessing the independence of the presence viruses in the most numerous taxa at each location.
| Gulf of Maine SAGs | |||
| Contains virus | TRUE | FALSE | |
| Alveolata | 22 | 75 | chi-square(5, N = 291) = 54.12 |
| Stramenopile | 36 | 55 | p = 1.99e-10 |
| Chlorophyta/Prasinophyta | 32 | 19 | |
| Cercozoa | 14 | 16 | |
| Choanozoa | 13 | 0 | |
| Picozoa | 9 | 0 | |
| Contains bacteriophage | TRUE | FALSE | |
| Alveolata | 16 | 81 | chi-square(5, N = 292) = 56.54 |
| Stramenopile | 25 | 66 | p = 6.28e-11 |
| Chlorophyta/Prasinophyta | 24 | 27 | |
| Cercozoa | 8 | 22 | |
| Choanozoa | 13 | 0 | |
| Picozoa | 8 | 1 | |
| Contains inter-phylum virus | TRUE | FALSE | |
| Alveolata | 7 | 90 | chi-square(5, N = 291) = 107.43 |
| Stramenopile | 8 | 83 | p = 1.42e-21 |
| Chlorophyta/Prasinophyta | 8 | 43 | |
| Cercozoa | 4 | 26 | |
| Choanozoa | 13 | 0 | |
| Picozoa | 8 | 1 | |
| Mediterranean SAGs | |||
| Contains virus | TRUE | FALSE | |
| Stramenopile | 19 | 22 | chi-square(2, N = 91) = 2.07 |
| Chlorophyta/Prasinophyta | 15 | 26 | p = 0.355 |
| Haptophyta | 2 | 7 | |
| Contains bacteriophage | TRUE | FALSE | |
| Stramenopile | 8 | 33 | chi-square(2, N = 91) = 0.37 |
| Chlorophyta/Prasinophyta | 7 | 34 | p = 0.830 |
| Haptophyta | 1 | 8 | |