Table 1.
General genomic properties of five Buchnera aphidicola strains
| Genomic propertya | Value for property for B. aphidicola strainb: |
||||
|---|---|---|---|---|---|
| BAp | BSg | BBp | BCc | BCt | |
| Genome size (bp) | 652,115 | 653,001 | 618,379 | 425,229 | 452,999 |
| Chromosome size (bp) | 640,681 | 642,454 | 615,980 | 416,380 | 444,930 |
| Plasmid size (bp) | 11,434 | 11,547 | 2,399 | 8,849 | 8,069 |
| Total no. of genesc | 609 | 597 | 546 | 402 | 404 |
| No. of CDS (chromosome + plasmids) | 562 + 9 | 550 + 9 | 505 + 3 | 358 + 7 | 361 + 6 |
| No. of rRNA genes | 3 | 3 | 3 | 3 | 3 |
| No. of tRNA genes | 32 | 32 | 32 | 31 | 31 |
| No. of other RNA genes | 3 | 3 | 3 | 3 | 3 |
| No. of pseudogenes | 12 | 33 | 9 | 3 | 9 |
| Avg length of CDS (bp) | 984 | 979 | 996 | 994 | 966 |
| Avg length of IGR (bp) | 126.90 | 113.30 | 200.50 | 135.80 | 200.15 |
| G+C content (%) | 26.24 | 26.30 | 25.30 | 20.20 | 25.00 |
a
CDS, coding sequences; IGR, intergenic region.
b
B. aphidicola strains (RefSeq accession numbers are shown in parentheses) are abbreviated as follows: BAp, B. aphidicola from Acyrthosiphon pisum (NC_011833); BSg, B. aphidicola from Schizaphis graminum (NC_004061); BBp, B. aphidicola from Baizongia pistaciae (NC_004545); BCc, B. aphidicola from Cinara cedri (NC_008513); BCt, B. aphidicola from Cinara tujafilina (CP001817).
c
In the final number of genes, we have considered only one ribD gene for all genomes. The fliO and fliP genes and the fliM and fliN genes have been considered independent genes even though they are fused in some genomes.