Table 1.
Average (±) numbers of synonymous (KS) and nonsynonymous (Ka) substitutions per site and transition/transversion (ts/tv) ratios between angiosperms and outgroup Marchantia polymorpha for 15 mitochondrial genes
| Gene* | La | Ka | Test† | Ls | Ks | Test† | ts/tv |
|---|---|---|---|---|---|---|---|
| orf25 | 345 | 0.442 ± 0.048 | a | 90 | 1.163 ± 0.356 | a | 0.71 |
| rps3 | 722 | 0.274 ± 0.023 | ab | 193 | 0.526 ± 0.076 | bcdef | 0.70 |
| rps13 | 251 | 0.253 ± 0.038 | ab | 67 | 0.481 ± 0.120 | cdef | 0.84 |
| rps12 | 258 | 0.107 ± 0.022 | ab | 81 | 0.661 ± 0.130 | abcd | 1.21 |
| atp1 | 1127 | 0.098 ± 0.010 | ab | 337 | 0.640 ± 0.064 | abcde | 0.77 |
| coxIII | 556 | 0.091 ± 0.013 | abc | 165 | 0.620 ± 0.100 | abcde | 0.58 |
| atp6 | 499 | 0.084 ± 0.014 | abc | 137 | 0.627 ± 0.094 | abcde | 0.99 |
| nad4 | 993 | 0.077 ± 0.009 | abcd | 280 | 0.488 ± 0.054 | cdef | 1.15 |
| cob | 821 | 0.077 ± 0.010 | abcd | 229 | 0.546 ± 0.064 | bcdef | 1.07 |
| nad5 | 1408 | 0.076 ± 0.008 | abcd | 386 | 0.589 ± 0.056 | abcdef | 0.83 |
| nad1 | 220 | 0.075 ± 0.019 | abcd | 68 | 0.475 ± 0.110 | ef | 0.75 |
| nad3 | 238 | 0.068 ± 0.019 | bcd | 59 | 0.313 ± 0.089 | f | 2.05 |
| coxII | 517 | 0.053 ± 0.011 | cd | 134 | 0.502 ± 0.090 | def | 0.77 |
| coxI | 1131 | 0.036 ± 0.006 | cd | 330 | 0.676 ± 0.067 | abc | 0.90 |
| atp9 | 148 | 0.015 ± 0.010 | d | 47 | 0.851 ± 0.294 | ab | 0.99 |
| Total | 9234 | 2603 | |||||
| Weighted average‡ | 0.108 ± 0.013 | 0.601 ± 0.081 |
M, Marchantia polymorphia; Z, Zea mays; T, Triticum aestiyum; Or, Oryza sativa; Sb, Sorghum bicolor; V, Vicia faba; Pi, Pisum sativum; G, Glycine max; Ph, Phaseolus vulgaris; Oe, Oenothera berteriana; R, Raphanus sativus; Be, Beta vulgaris; C, Citrullus lanatus; H, Helianthus annuus; N, Nicotiana tabaccum; Pe, Petunia hybrida; D, Daucus carota; La, Lactuca sativa; Ly, Lycopersicon esculentum; Pa, Panax ginseng; St, Solanum tuberosum; A, Arabidopsis thaliana; Br, Brassica campestris; La, number of nonsynonymous sites; LS, number of synonymous sites.
Taxa used for each gene; coxI: M, Z, T, Or, Sb, Pi, G, Oe, R, Be; coxII: M, Z, T, Or, Pi, G, Oe, Be, Pe, D; coxIII: M, Z, T, Or, V, G, Oe, H; atp1: M, Z, T, Or, Pi, G, Ph, Oe, R, Be, H, N, Br; atp6: M, Z, T, Or, Sb, V, G, Oe, R, N: atp9: M, Z, T, Or, Sb, V, Pi, G, OE, Be, H, N, Pe; rps3: M, Z, Or, Oe, Pe, Ly; rps12: M, Z, T, Or, Pe, Pa, Br; rps13: M, Z, T, Oe, N, D; orf25: M, Z, T, Or, N, A; cob: M, Z, T, Or, V, Oe, St, A; nad1: M, T, Oe, C, Pe, A; nad3: M, Z, T, Or, Oe, Pe, Pa, Br; nad4 (exons 1, 2, 3, and 4), M, Z, T, La, Br; and nad5: M, T, Oe, A.
Kruskal–Wallis multiple test of mean comparison: genes with the same letter are not significantly different (level P < 0.05 corrected for multiple test).
SE were calculated according to described methods (1).