TABLE 1.
Average evolutionary distances between eucaryotic and procaryotic HSP70 sequencesa
| Group | Pairwise maximum-likelihood distance
|
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Archaea | G+ | G−
|
Eucarya | ||||||
| P | D/Cy | C/S | Gns | Apy | Tma | ||||
| Archaea | 0.000 | 0.835 | 0.896 | 0.938 | 0.889 | 0.821 | 1.032 | 0.859 | 1.331 |
| G+ | 0.000 | 0.797 | 0.795 | 0.962 | 0.780 | 0.936 | 0.871 | 1.206 | |
| G− | |||||||||
| P | 0.000 | 0.828 | 0.636 | 0.712 | 0.874 | 0.957 | 1.119 | ||
| D/Cy | 0.000 | 0.789 | 0.795 | 0.853 | 0.924 | 1.189 | |||
| C/S | 0.000 | 0.666 | 0.845 | 0.974 | 1.166 | ||||
| Gns | 0.000 | 0.721 | 0.986 | 1.292 | |||||
| Apy | 0.000 | 1.115 | 1.304 | ||||||
| Tma | 0.000 | 1.254 | |||||||
| Eucarya | 0.000 | ||||||||
a
The pairwise maximum-likelihood distances (JTT amino acid replacement model) used for generating the tree of Fig. 6 were averaged between the taxa comprising the individual groups of organisms. The gram-negative (G−) bacterial group included all of the bacterial taxa shown in Fig. 6 except the low- and high-G+C gram-positive (G+) bacteria. P, proteobacteria; D/Cy, deinococci and cyanobacteria; C/S, chlamydiae and spirochetes; Gns, green nonsulfur bacteria; Apy, A. pyrophilus; Tma, T. maritima.