Table 1.
Comparison of Different Strains of Serratia symbiotica Genomes
| Features | S. marcescens Db11 |
S. symbiotica |
||
|---|---|---|---|---|
| SAp | SCt | SCc | ||
| Chromosome (bp) | 5,113,802 | 2,761,037 | 2,494,579 | 1,762,765 |
| Mean G+C (%) | 59.5 | 48.4 | 52 | 29.2 |
| Predicted CDSs | 4,709 | 2,098 | 1,601 | 672 |
| Average CDS size (bp) | 954.5 | 835.3 | 831.2 | 1,018.5 |
| Pseudogenes | 12 | 550 | 916 | 59 |
| rRNAs (23S,16S,5S) | 7,7,8 | 5,5,5 | 4,3,6 | 1,1,1 |
| tRNAs | 88 | 44 | 47 | 36 |
| Other RNAs | 69 | 57 | 59 | 6 |
| CDS density (%) | 87.9 | 56.8 | 53.4 | 38.8 |
| Pseudogene density (%) | 0.3 | 19.1 | 29.8 | 2.4 |
| Mobile elements | Yes | Yes | Yes | No |
| Cell shape | Rod | Rod | Rod | Spherical |
| Lifestyle | Free living | Facultative | Co-obligate | Co-obligate |
Note.—Comparison of genomic features from S. symbiotica strains contrasting with characteristics of a free-living relative (S. marcescens Db11).