Table 2.
Estimated Ka/Ks ratios of the duplicated BrAQP genes with their divergence time in B. rapa
| Duplicated gene pairs | Ks | Ka | Ka/Ks | Duplication type | Purify selection | Time (mya) | ||
|---|---|---|---|---|---|---|---|---|
| BrSIP1;1b (MF1) | vs. | BrSIP1;1a (LF) | 0.191 | 0.034 | 0.18 | Segmental | Yes | 0.64 |
| BrSIP2;1b (MF2) | vs. | BrSIP2;1a (MF1) | 0.241 | 0.059 | 0.24 | Segmental | Yes | 0.80 |
| BrSIP2;1b (MF2) | vs. | BrSIP2;1c (LF) | 0.307 | 0.084 | 0.27 | Segmental | Yes | 1.02 |
| BrNIP1;2b (MF1) | vs. | BrNIP1;2a (LF) | 0.314 | 0.006 | 0.02 | Segmental | Yes | 1.05 |
| BrNIP3;1a (MF1) | vs. | BrNIP3;1b (MF2) | 0.421 | 0.051 | 0.12 | Segmental | Yes | 1.40 |
| BrNIP4;1 (MF2) | vs. | BrNIP4;2b (MF2) | 0.376 | 0.068 | 0.18 | Tandem | Yes | 1.25 |
| BrNIP4;2b (MF2) | vs. | BrNIP4;2c (MF2) | 0.338 | 0.077 | 0.23 | Tandem | Yes | 1.13 |
| BrNIP5;1b (MF1) | vs. | BrNIP5;1a (MF2) | 0.282 | 0.006 | 0.02 | Segmental | Yes | 0.94 |
| BrNIP6;1b (LF) | vs. | BrNIP6;1a (MF1) | 0.283 | 0.034 | 0.12 | Segmental | Yes | 0.94 |
| BrPIP1;1a (LF) | vs. | BrPIP1;1b (MF1) | 0.229 | 0.012 | 0.05 | Segmental | Yes | 0.76 |
| BrPIP1;1a (LF) | vs. | BrPIP1;2b (LF) | 0.727 | 0.018 | 0.02 | Segmental | Yes | 2.42 |
| BrPIP1;1a (LF) | vs. | BrPIP1;3b (LF) | 0.925 | 0.091 | 0.10 | Segmental | Yes | 3.08 |
| BrPIP1;1b (MF1) | vs. | BrPIP1;3b (LF) | 0.867 | 0.085 | 0.10 | Segmental | Yes | 2.89 |
| BrPIP1;1b (MF1) | vs. | BrPIP1;2b (LF) | 0.768 | 0.012 | 0.02 | Segmental | Yes | 2.56 |
| BrPIP1;2b (LF) | vs. | BrPIP1;2a (MF1) | 0.224 | 0.027 | 0.12 | Segmental | Yes | 0.75 |
| BrPIP1;2b (LF) | vs. | BrPIP1;3a (MF2) | 1.013 | 0.054 | 0.05 | Segmental | Yes | 3.38 |
| BrPIP1;2b (LF) | vs. | BrPIP1;3b (LF) | 0.948 | 0.066 | 0.07 | Segmental | Yes | 3.16 |
| BrPIP1;3a (MF2) | vs. | BrPIP1;4 (MF1) | 0.672 | 0.041 | 0.06 | Segmental | Yes | 2.24 |
| BrPIP1;3b (LF) | vs. | BrPIP1;3a (MF2) | 0.114 | 0.017 | 0.15 | Segmental | Yes | 0.38 |
| BrPIP1;3b (LF) | vs. | BrPIP1;4 (MF1) | 0.705 | 0.047 | 0.07 | Segmental | Yes | 2.35 |
| BrPIP2;1 (LF) | vs. | BrPIP2;2b (LF) | 0.693 | 0.152 | 0.22 | Segmental | Yes | 2.31 |
| BrPIP2;1 (LF) | vs. | BrPIP2;2a (MF2) | 0.786 | 0.160 | 0.20 | Segmental | Yes | 2.62 |
| BrPIP2;2b (LF) | vs. | BrPIP2;2a (MF2) | 0.377 | 0.026 | 0.07 | Segmental | Yes | 1.26 |
| BrPIP2;3a (MF2) | vs. | BrPIP2;3b (LF) | 0.410 | 0.023 | 0.06 | Segmental | Yes | 1.37 |
| BrPIP2;3a (MF2) | vs. | BrPIP2;5a (LF) | 1.160 | 0.195 | 0.17 | Segmental | Yes | 3.87 |
| BrPIP2;3a (MF2) | vs. | BrPIP2;4c (LF) | 2.817 | 0.117 | 0.04 | Segmental | Yes | 9.39 |
| BrPIP2;3b (LF) | vs. | BrPIP2;2a (MF2) | 0.351 | 0.006 | 0.02 | Segmental | Yes | 1.17 |
| BrPIP2;3b (LF) | vs. | BrPIP2;1 (LF) | 0.734 | 0.026 | 0.04 | Segmental | Yes | 2.45 |
| BrPIP2;3b (LF) | vs. | BrPIP2;4c (LF) | 1.325 | 0.091 | 0.07 | Segmental | Yes | 4.42 |
| BrPIP2;4a (MF2) | vs. | BrPIP2;4b (MF1) | 0.106 | 0.020 | 0.19 | Segmental | Yes | 0.35 |
| BrPIP2;4a (MF2) | vs. | BrPIP2;4c (LF) | 0.172 | 0.012 | 0.07 | Segmental | Yes | 0.57 |
| BrPIP2;4b (MF1) | vs. | BrPIP2;4c (LF) | 0.142 | 0.020 | 0.14 | Segmental | Yes | 0.47 |
| BrPIP2;5a (LF) | vs. | BrPIP2;5b (MF2) | 0.374 | 0.028 | 0.07 | Segmental | Yes | 1.25 |
| BrPIP2;7a (MF2) | vs. | BrPIP2;7c (MF1) | 0.176 | 0.035 | 0.20 | Segmental | Yes | 0.59 |
| BrPIP2;7a (MF2) | vs. | BrPIP2;7b (LF) | 0.415 | 0.032 | 0.08 | Segmental | Yes | 1.38 |
| BrPIP2;7b (LF) | vs. | BrPIP2;7c (MF1) | 0.304 | 0.011 | 0.04 | Segmental | Yes | 1.01 |
| BrTIP1;1 (MF1) | vs. | BrTIP1;2b (MF1) | 0.590 | 0.093 | 0.16 | Segmental | Yes | 1.97 |
| BrTIP1;1 (MF1) | vs. | BrTIP1;2a (LF) | 0.590 | 0.061 | 0.10 | Segmental | Yes | 1.97 |
| BrTIP1;2a (LF) | vs. | BrTIP1;2b (MF1) | 0.964 | 0.167 | 0.17 | Segmental | Yes | 3.21 |
| BrTIP2;1a (LF) | vs. | BrTIP2;1b (MF2) | 0.133 | 0.035 | 0.26 | Segmental | Yes | 0.44 |
| BrTIP2;1a (LF) | vs. | BrTIP2;1c (MF1) | 0.170 | 0.029 | 0.17 | Segmental | Yes | 0.57 |
| BrTIP2;1b (MF2) | vs. | BrTIP2;1c (MF1) | 0.134 | 0.017 | 0.13 | Segmental | Yes | 0.45 |
| BrTIP2;3a (LF) | vs. | BrTIP2;3b (MF1) | 0.514 | 0.041 | 0.08 | Segmental | Yes | 1.71 |
| BrTIP3;1a (MF1) | vs. | BrTIP3;1b (LF) | 0.337 | 0.051 | 0.15 | Segmental | Yes | 1.12 |
| BrTIP3;2a (LF) | vs. | BrTIP3;2b (MF1) | 0.354 | 0.017 | 0.05 | Segmental | Yes | 1.18 |
LF less fractioned subgenome, MF more fractioned subgenome (MF1 and MF2), Ks the number of synonymous substitutions per synonymous site, Ka the number of nonsynonymous substitutions per nonsynonymous site, MYA million years ago