Table 2. Similarity matrix of bacterial SSU sequences.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
| 1. symb. of D. oligothrix BOD9, AJ630204 | 100 | |||||||||||||||||||||||||
| 2. symb. of P. caudatum SH42, FR822997 | 99.5 | 100 | ||||||||||||||||||||||||
| 3. symb. of Carteria cerasiformis, AB688628 | 99.9 | 99.5 | 100 | |||||||||||||||||||||||
| 4. derived from acid-impacted lake, EF520417 | 99.3 | 99.0 | 99.3 | 100 | ||||||||||||||||||||||
| 5. symb. of Spirostomum sp. 72, FR822998-FR823000 | 100 | 99.6 | 100 | 99.4 | 100 | |||||||||||||||||||||
| 6. symb. of E. octocarinatus FL(12)-VI, FR823004-FR823007 | 99.9 | 99.5 | 99.9 | 99.3 | 100 | 100 | ||||||||||||||||||||
| 7. derived from water of lake Dongping, FJ612282 | 98.4 | 98.1 | 98.4 | 97.9 | 98.5 | 98.4 | 100 | |||||||||||||||||||
| 8. symb. of Pleodorina japonica, AB688629 | 99.4 | 99.0 | 99.4 | 98.9 | 99.5 | 99.4 | 98.0 | 100 | ||||||||||||||||||
| 9. derived from a fish aquarium, JX105713 | 99.4 | 99.0 | 99.4 | 98.9 | 99.5 | 99.4 | 98.0 | 99.7 | 100 | |||||||||||||||||
| 10. derived from waste water, JF828749 | 99.4 | 99.0 | 99.4 | 98.9 | 99.5 | 99.4 | 98.0 | 99.6 | 99.6 | 100 | ||||||||||||||||
| 11. symb. of D. oligothrix DS12/4, FR823001-FR823003 | 99.4 | 99.0 | 99.4 | 98.9 | 99.5 | 99.4 | 98.0 | 99.4 | 99.4 | 99.4 | 100 | |||||||||||||||
| 12. derived from forested wetland, AF523878 | 99.0 | 98.6 | 99.0 | 98.5 | 99.1 | 99.0 | 98.6 | 98.9 | 98.9 | 98.9 | 99.0 | 100 | ||||||||||||||
| 13. derived from water of lake Taihu, JN869203 | 99.4 | 99.0 | 99.4 | 98.9 | 99.5 | 99.4 | 98.0 | 99.4 | 99.4 | 99.4 | 99.6 | 99.0 | 100 | |||||||||||||
| 14. derived from subsurface water of Kalahari, DQ223223 | 99.5 | 99.1 | 99.5 | 99.0 | 99.6 | 99.5 | 98.1 | 99.3 | 99.3 | 99.3 | 99.5 | 98.9 | 99.5 | 100 | ||||||||||||
| 15. symb. of Bryopsis sp., HE648945 | 94.7 | 94.4 | 94.7 | 94.2 | 94.9 | 94.7 | 94.1 | 94.9 | 94.9 | 94.7 | 94.8 | 94.3 | 94.8 | 94.9 | 100 | |||||||||||
| 16. symb. of Bryopsis sp., HE648947 | 94.8 | 94.4 | 94.8 | 94.3 | 95.0 | 94.8 | 94.2 | 95.0 | 95.0 | 94.8 | 94.9 | 94.4 | 94.9 | 95.0 | 99.8 | 100 | ||||||||||
| 17. symb. of Montastraea faveolata, FJ203077 | 94.2 | 93.9 | 94.2 | 93.7 | 94.4 | 94.2 | 93.6 | 94.2 | 94.2 | 94.1 | 94.2 | 93.6 | 94.1 | 94.4 | 98.1 | 98.2 | 100 | |||||||||
| 18. symb. of Bryopsis sp., HE648946 | 95.9 | 95.6 | 95.9 | 95.4 | 96.1 | 95.9 | 95.0 | 95.9 | 95.9 | 95.9 | 96.0 | 95.5 | 96.0 | 96.1 | 97.6 | 97.6 | 97.0 | 100 | ||||||||
| 19. symb. of deep-sea octacoral, DQ395479 | 94.7 | 94.3 | 94.7 | 94.2 | 94.8 | 94.7 | 93.7 | 94.5 | 94.5 | 94.5 | 94.7 | 94.2 | 94.7 | 94.8 | 96.8 | 96.9 | 96.5 | 97.3 | 100 | |||||||
| 20. symb. of deep-sea octacoral, DQ395439 | 94.4 | 94.0 | 94.4 | 93.9 | 94.5 | 94.4 | 93.4 | 94.2 | 94.2 | 94.2 | 94.4 | 93.8 | 94.4 | 94.5 | 96.5 | 96.6 | 96.2 | 97.0 | 99.4 | 100 | ||||||
| 21. derived from a stratified lagoon, HQ691997 | 94.8 | 94.4 | 94.8 | 94.4 | 94.9 | 94.8 | 93.9 | 94.7 | 94.7 | 94.7 | 94.7 | 94.4 | 94.8 | 95.0 | 96.1 | 96.1 | 95.5 | 96.7 | 96.3 | 96.0 | 100 | |||||
| 22. symb. of Hydra oligactis, EF667899 | 95.4 | 95.0 | 95.4 | 94.9 | 95.5 | 95.4 | 94.4 | 95.2 | 95.2 | 95.2 | 95.4 | 95.0 | 95.4 | 95.6 | 95.5 | 95.5 | 95.0 | 96.7 | 95.0 | 94.7 | 95.2 | 100 | ||||
| 23. symb. of Hydra oligactis, EF667896 | 95.6 | 95.2 | 95.6 | 95.1 | 95.7 | 95.6 | 94.7 | 95.5 | 95.5 | 95.5 | 95.6 | 95.3 | 95.6 | 95.8 | 95.7 | 95.8 | 95.2 | 96.9 | 95.2 | 95.0 | 95.5 | 99.6 | 100 | |||
| 24. derived from acid-impacted lake, EF520410 | 95.9 | 95.5 | 95.9 | 95.4 | 96.0 | 95.9 | 95.0 | 95.8 | 95.8 | 95.8 | 95.9 | 95.5 | 95.9 | 96.1 | 96.0 | 96.1 | 95.5 | 97.2 | 95.5 | 95.3 | 95.8 | 99.3 | 99.6 | 100 | ||
| 25. symb. of Ichthyophthirius multifiliis, GQ870455 | 95.6 | 95.3 | 95.6 | 95.2 | 95.7 | 95.6 | 94.8 | 95.5 | 95.5 | 95.5 | 95.5 | 95.2 | 95.5 | 95.5 | 94.7 | 94.8 | 94.4 | 95.3 | 95.3 | 95.0 | 95.4 | 96.6 | 96.8 | 97.1 | 100 | |
| 26. derived from wastewater treatment plant, CU466797 | 94.0 | 93.6 | 94.1 | 93.5 | 94.1 | 94.1 | 93.6 | 94.1 | 94.1 | 94.0 | 94.1 | 93.7 | 94.1 | 94.0 | 94.9 | 95.0 | 94.4 | 94.9 | 94.8 | 94.5 | 94.8 | 95.1 | 95.4 | 95.5 | 95.5 | 100 |
Numbers represent similarity percentages. Presented sequences were either obtained from bacterial symbionts (symb.) or are environmental sequences deriving from screenings of microbial communities of diverse humid or aquatic habitats. Highlighted in bold are the sequences obtained in this study. Numbers reported in bold are similarity values which indicate that the respective sequences (1–14; 15–21; 22–26) belong to the same clade.