Table 2.
Pairwise identities and divergence period estimation of common tobacco XTH genes.
| Paralogous pairs | Score | Identities | Similarity | Gaps | SynDif | SynPos | Ks | NSynDif | NSynPos | Ka | Ka/Ks | T (Mya) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NtXTH2-NtXTH3 | 1234 | 214/291 (73.5%) | 218/291 (74.9%) | 72/291 (24.7%) | 16 | 138.4 | 0.13 | 5 | 518.58 | 0.01 | 0.08 | 10.29 |
| NtXTH4-NtXTH5 | 1655 | 292/298 (98.0%) | 297/298 (99.7%) | 0/298 (0.0%) | 31 | 184.5 | 0.19 | 6 | 709.50 | 0.01 | 0.04 | 15.59 |
| NtXTH6-NtXTH7 | 1574 | 282/299 (94.3%) | 287/299 (96.0%) | 3/299 (1.0%) | 35 | 186.5 | 0.22 | 15 | 701.50 | 0.02 | 0.10 | 17.70 |
| NtXTH10-NtXTH11 | 1569 | 287/292 (98.3%) | 289/292 (99.0%) | 0/292 (0.0%) | 23 | 199.3 | 0.13 | 5 | 676.67 | 0.01 | 0.06 | 10.27 |
| NtXTH12-NtXTH13 | 1565 | 287/298 (96.3%) | 291/298 (97.7%) | 0/298 (0.0%) | 39 | 197.1 | 0.23 | 14 | 696.92 | 0.02 | 0.09 | 18.83 |
| NtXTH14-NtXTH15 | 1390 | 256/288 (88.9%) | 266/288 (92.4%) | 5/288 (1.7%) | 19.3 | 191.1 | 0.11 | 44.7 | 654.92 | 0.07 | 0.66 | 8.91 |
| NtXTH16-NtXTH17 | 1610 | 292/302 (96.7%) | 296/302 (98.0%) | 3/302 (1.0%) | 24 | 189.3 | 0.14 | 11 | 707.67 | 0.02 | 0.11 | 11.39 |
| NtXTH18-NtXTH19 | 1603 | 291/295 (98.6%) | 294/295 (99.7%) | 0/295 (0.0%) | 27 | 200.6 | 0.15 | 4 | 684.42 | 0.01 | 0.04 | 12.16 |
| NtXTH20-NtXTH21 | 1179 | 213/291 (73.2%) | 213/291 (73.2%) | 74/291 (25.4%) | 19 | 142.7 | 0.15 | 5 | 508.33 | 0.01 | 0.07 | 12.02 |
| NtXTH22-NtXTH23 | 1510 | 276/284 (97.2%) | 280/284 (98.6%) | 0/284 (0.0%) | 35 | 191.8 | 0.21 | 9 | 660.25 | 0.01 | 0.07 | 17.15 |
| NtXTH24-NtXTH25 | 1543 | 284/290 (97.9%) | 286/290 (98.6%) | 0/290 (0.0%) | 41.5 | 195.8 | 0.25 | 7.5 | 674.17 | 0.01 | 0.04 | 20.41 |
| NtXTH28-NtXTH29 | 1757 | 326/337 (96.7%) | 333/337 (98.8%) | 0/337 (0.0%) | 23 | 227.7 | 0.11 | 11 | 783.33 | 0.01 | 0.13 | 8.89 |
| NtXTH30-NtXTH31 | 1455.5 | 271/288 (94.1%) | 277/288 (96.2%) | 3/288 (1.0%) | 24 | 191.3 | 0.14 | 15 | 663.67 | 0.02 | 0.17 | 11.25 |
| NtXTH32-NtXTH33 | 1441 | 264/279 (94.6%) | 274/279 (98.2%) | 0/279 (0.0%) | 18 | 184.9 | 0.10 | 15 | 652.08 | 0.02 | 0.22 | 8.55 |
| NtXTH35-NtXTH36 | 1458 | 271/289 (93.8%) | 274/289 (94.8%) | 3/289 (1.0%) | 30 | 187.9 | 0.18 | 16 | 670.08 | 0.02 | 0.14 | 14.71 |
| NtXTH37-NtXTH38 | 1540 | 277/290 (95.5%) | 283/290 (97.6%) | 0/290 (0.0%) | 28 | 191.2 | 0.16 | 13 | 678.83 | 0.02 | 0.12 | 13.36 |
| NtXTH41-NtXTH42 | 1562 | 282/294 (95.9%) | 285/294 (96.9%) | 0/294 (0.0%) | 22 | 195.2 | 0.12 | 15 | 686.83 | 0.02 | 0.18 | 10.02 |
| NtXTH43-NtXTH44 | 1625 | 288/296 (97.3%) | 294/296 (99.3%) | 0/296 (0.0%) | 23 | 204.9 | 0.12 | 8 | 683.08 | 0.01 | 0.10 | 9.97 |
| NtXTH45-NtXTH46 | 1558 | 283/295 (95.9%) | 291/295 (98.6%) | 1/295 (0.3%) | 13 | 204.9 | 0.07 | 11 | 677.08 | 0.02 | 0.25 | 5.43 |
| NtXTH48-NtXTH49 | 1591 | 295/316 (93.4%) | 303/316 (95.9%) | 0/316 (0.0%) | 15 | 222.5 | 0.07 | 22 | 725.50 | 0.03 | 0.44 | 5.79 |
| NtXTH51-NtXTH52 | 1772 | 330/343 (96.2%) | 333/343 (97.1%) | 4/343 (1.2%) | 25.5 | 219.4 | 0.13 | 10.5 | 797.58 | 0.01 | 0.11 | 10.35 |
| NtXTH53-NtXTH54 | 1739 | 320/331 (96.7%) | 325/331 (98.2%) | 0/331 (0.0%) | 16 | 227.0 | 0.07 | 11 | 766.60 | 0.01 | 0.20 | 6.07 |
| NtXTH55-NtXTH56 | 1692 | 313/330 (94.8%) | 320/330 (97.0%) | 0/330 (0.0%) | 34 | 225.8 | 0.17 | 18 | 764.25 | 0.02 | 0.14 | 13.78 |
SynDif: total number of synonymous difference; SynPos: total number of synonymous sites; Ks: number of synonymous substitution per synonymous site; NSynDif: total number of non-synonymous difference; NSynPos: total number of no synonymous sites; Ka: number of nonsynonymous substitutions per nonsynonymous site; Ka/Ks: the ratio of the rates of nonsynonymous to synonymous substitutions; T: divergence time; Mya: Million years ago.