Table 1.
Estimates of branch length for sister clades of parasitic (P) and autotrophic (non-parasitic, NP) plants for nuclear and mitochondrial sequences
| Comparison | Parasitic (P) | Non-parasite (NP) |
Nuclear |
Mitchondrial (all substitutions) |
Mitchondrial (dN) |
Mitchondrial (dS) |
Mitchondrial (dN/dS) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | NP | Sign | P | NP | Sign | P | NP | Sign | P | NP | Sign | P | NP | Sign | |||
| 1 |
Apodanthaceae |
Malvaceae |
0.513 |
0.072 |
+ |
0.380 |
0.037 |
+ |
0.466 |
0.055 |
+ |
0.739 |
0.024 |
+ |
0.628 |
1.287 |
– |
| 2 |
Cytinaceae |
Thymelaeaceae |
0.121 |
0.028 |
+ |
0.070 |
0.035 |
+ |
0.077 |
0.032 |
+ |
0.094 |
0.043 |
+ |
0.960 |
0.742 |
+ |
| 3 |
Rafflesiaceae |
Passifloraceae/ Euphorbiaceae |
1.093 |
0.052 |
+ |
0.631 |
0.141 |
+ |
0.577 |
0.114 |
+ |
0.660 |
0.241 |
+ |
0.726 |
0.520 |
+ |
| 4 |
Cynomoriaceae |
Hamamelidacea/ Peridiscaceae |
0.087 |
0.012 |
+ |
0.030 |
0.011 |
+ |
0.017 |
0.007 |
+ |
0.060 |
0.024 |
+ |
0.276 |
0.282 |
– |
| 5 |
Krameriaceae |
Zygophyllaceae |
0.019 |
0.025 |
– |
0.015 |
0.011 |
+ |
0.012 |
0.007 |
+ |
0.023 |
0.025 |
– |
0.529 |
0.289 |
+ |
| 6 |
Mitrastemonaceae |
Vaccinieae |
0.075 |
0.013 |
+ |
0.026 |
0.017 |
+ |
0.021 |
0.005 |
+ |
0.039 |
0.048 |
– |
0.529 |
0.108 |
+ |
| 7 |
Boraginaceae |
Boraginaceae |
0.036 |
0.028 |
+ |
0.029 |
0.020 |
+ |
0.020 |
0.013 |
+ |
0.049 |
0.044 |
+ |
0.389 |
0.343 |
+ |
| 8 |
Orobanchaceae/ Rhinantheae |
Lamiliales/ Plantaginaceae |
0.042 |
0.043 |
– |
0.007 |
0.022 |
– |
0.002 |
0.006 |
– |
0.023 |
0.072 |
– |
0.133 |
0.054 |
+ |
| 9 |
Convolvulaceae |
Ipomoeeae |
0.080 |
0.016 |
+ |
0.061 |
0.021 |
+ |
0.052 |
0.008 |
+ |
0.096 |
0.054 |
+ |
0.562 |
0.249 |
+ |
| 10 |
Lauraceae |
Lauraceae |
0.323 |
0.230 |
+ |
0.012 |
0.005 |
+ |
0.010 |
0.004 |
+ |
0.018 |
0.008 |
+ |
0.540 |
0.530 |
+ |
| 11 |
Hydnoraceae |
Aristolochiaceae |
0.296 |
0.057 |
+ |
0.152 |
0.042 |
+ |
0.072 |
0.014 |
+ |
0.152 |
0.042 |
+ |
0.418 |
0.330 |
+ |
| 12 |
Balanophoraceae/Loranthceae/ Schoepfiaceae/ Olacaceae |
Olacaceae |
0.384 |
0.120 |
+ |
0.131 |
0.014 |
+ |
0.101 |
0.005 |
+ |
0.180 |
0.040 |
+ |
0.493 |
0.773 |
– |
| Wilcoxon signed-ranks test | Z = 2.786, p = 0.005 | Z = 2.628, p = 0.009 | Z = 2.942, p = 0.003 | Z = 2.157, p = 0.031 | Z = 1.294, p = 0.196 | ||||||||||||
For details of the species and sequences included in each comparisons see Additional file 1: Table S1 and Additional file 2: Table S2. Mitochondrial branch lengths were estimated for the whole alignment (all substitutions), as well as nonsynonymous (dN) and synonymous substitutions (dS): see methods for details. Sign indicates whether the parasite has the longer branch length (+) or not (−). The Wilcoxon ranked signs test takes into account the magnitude of differences in branch length as well as the sign.