Table 1.
Statistics from the four pairwise genome comparisons of H.pylori strains from Japan and Europe
| Pairs | Strain (geographic origin in brackets) | Total genes present in genome | Genes pairs remaining after filtering | Average Ks (substitutions per site) | Average Ka/Ks < 1 | Number of genes under inferred positive selection | Percentage of total genes |
|---|---|---|---|---|---|---|---|
| Japan1 | F57 (Fukui) | 1563 | 1191 | 0.034 | 0.11 | 31 | 1.98 |
| F16 (Fukui) | 1543 | 0.030 | 0.11 | 30 | 1.94 | ||
| Japan2 | 35a (Kyoto) | 1560 | 1173 | 0.023 | 0.10 | 25 | 1.60 |
| 83 (Kyoto) | 1656 | 0.031 | 0.10 | 34 | 2.10 | ||
| Europe1 | G27 (Italy) | 1581 | 1181 | 0.054 | 0.15 | 17 | 1.08 |
| B38 (France) | 1571 | 0.051 | 0.16 | 16 | 1.02 | ||
| Europe2 | P12 (Germany) | 1634 | 1247 | 0.054 | 0.16 | 21 | 1.29 |
| 26695 (UK) | 1563 | 0.058 | 0.17 | 16 | 1.02 |