Table 1.
General Genomic Features of Portiera and Other Endosymbionts Lacking dnaQ, Presenting Large Intergenic Regions or Genome Instability
| Portiera TeVa | Portiera PeMo | Portiera SiSi | Portiera BeTa | Uzinura ASNER | Tremblaya PCVAL | Hodgkinia TETUND1 and TETUND2 | ||
|---|---|---|---|---|---|---|---|---|
| Accession number | LN649236 | LR744089 | CACTJB010000000 | CP003835 | NC_020135 | NC_017293 | CP007232 | CP007233 |
| Host | T. vaporariorum | P. mori | S. simplex | B. tabaci MED-Q1 | Aspidiotus nerii | Planococcus citri | Tettigades undata | |
| Genome size (bp) | 280,822 | 277,700 | 411,975 | 357,472 | 263,431 | 138,931 | 133,698 | 140,570 |
| Contigs | 1 | 1 | 9 | 1 | 1 | 1 | 1 | 1 |
| N50 (bp) | NA | NA | 17,098 | NA | NA | NA | NA | NA |
| L50 | NA | NA | 2 | NA | NA | NA | NA | NA |
| GC% | 24.69 | 24.1 | 26.18 | 26.12 | 30.2 | 58.83 | 46.77 | 46.16 |
| Genesa | 307 | 308 | 300 | 284 | 275 | 130 | 177 | 184 |
| CDS | 268 | 266 | 252 | 247 | 226 | 116 | 121 | 140 |
| Pseudogenes (CDS) | 1 | 3 | 11 | 7 | 13 | 19 | 39 | 19 |
| CDS avg. length | 989.21 ± 675.33 | 979.95 ± 672.88 | 977.88 ± 697.31 | 980.65 ± 697.56 | 965.30 ± 715.67 | 622.07 ± 591.77 | 789.69 ± 700.90 | 792.58 ± 670.70 |
| CDS avg. GC% | 23.88 ± 4.65 | 23.24 ± 5.01 | 25.33 ± 4.43 | 26.35 ± 4.01 | 29.59 ± 3.34 | 59.30 ± 3.09 | 46.15 ± 3.77 | 45.50 ± 3.81 |
| Intergenic avg. length | 62.79 ± 81.43 | 51.81 ± 63.09 | 715.44 ± 1,432.48 | 524.99 ± 871.23 | 141.63 ± 235.63 | 173.55 ± 189.19 | 105.08 ± 140 | 118.36 ± 164.76 |
| Intergenic avg. GC% | 19.12 ± 9.21 | 17.82 ± 9.37 | 22.07 ± 8.23 | 22.40 ± 7.15 | 23.60 ± 8.41 | 59.89 ± 6.15 | 47.53 ± 9.8 | 46.62 ± 7.46 |
| Coding density (%) | 91.46 | 96.60 | 59.56 | 69.60 | 89.73 | 81.26 | 90.49 | 90.06 |
| Intergenic regions (%) | 8.54 | 3.40 | 40.44 | 30.40 | 10.27 | 18.74 | 9.51 | 9.94 |
| rRNA | 3 | 3 | 3 | 3 | 3 | 6 | 3 | 3 |
| tRNA | 34 | 34 | 34 | 33 | 31 | 7 | 13 | 18 |
| tmRNA | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| RnaseP RNA | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 |
| dnaQ | Yes | Yes | Pseudo | No | No | Yes | Pseudo | Yes |
| Direct repeats | 1 | 2 | 23 | 4 | 1 | 3 | 2 | 0 |
| Inverted repeats | 0 | 1 | 17 | 2 | 1 | 4b | 2 | 1 |
| Tandem repeats | 10 | 31 | 3 | 111 | 11 | 0 | 0 | 0 |
a
Gene features including pseudogenes.
b
Three of them correspond to the duplicated rRNA operons.