Table 1.
Phylogenetically Controlled Generalized Least Squares (PGLS) Regressions between RNA Editing Site Abundance and PPR Protein Diversity and GC Content
| Statistics | Lambda (λ) | Slope | P values |
|---|---|---|---|
| PPPR/MTE | 0.9963 | −0.1513 | 0.0622 |
| PPPR/PTE | 0.9996 | 0.0248 | 0.5409 |
| PLSPPR/MTE | 0.9318 | 0.7102 | 0.0000** |
| PLSPPR/PTE | 0.9720 | 0.6527 | 0.0000** |
| PLS/MTE | 0.9414 | 0.4922 | 0.0000** |
| PLS/PTE | 0.3769 | 0.9547 | 0.0000** |
| E1/MTE | 0.9696 | 0.5141 | 0.0000** |
| E1/PTE | 0.9912 | 0.7830 | 0.0000** |
| E2/MTE | 0.9705 | 0.4188 | 0.0014** |
| E2/PTE | 0.6575 | 1.0741 | 0.0000** |
| E+/MTE | 0.9674 | 0.5971 | 0.0001** |
| E+/PTE | 0.9973 | 0.7425 | 0.0000** |
| DYW/MTE | 0.9967 | −0.0933 | 0.3111 |
| DYW/PTE | 0.9993 | 0.0824 | 0.2383 |
| MGC/MTE | 0.9395 | 0.0126 | 0.0006** |
| MGC1/MTE1 | 0.9895 | 9.1152 | 0.0369* |
| MGC2/MTE2 | 0.9699 | 27.1628 | 0.0000** |
| MGC3/MTE3 | 0.9813 | 4.1102 | 0.0639 |
| PGC/PTE | 0.9715 | 0.0301 | 0.0003** |
| PGC1/PTE1 | 1.0000 | 0.0498 | 0.8204 |
| PGC2/PTE2 | 0.9835 | 14.2927 | 0.0000** |
| PGC3/PTE3 | 0.9795 | 3.8486 | 0.0006** |
Note.—Correlations were tested between each two of the following parameters: the diversity of the P and PLS class PPR proteins (PPPR/PLSPPR) and the diversity of the five types of PLS PPR proteins (PLS/E1/E2/E+/DYW) with the RNA editing site abundance of the mt and pt genes (MTE/PTE), respectively; GC content of all three and the first, second, and third codon positions for protein-coding genes of mt (MGC/MGC1/MGC2/MGC3) and pt (PGC/PGC1/PGC2/PGC3) with the number of RNA editing sites for all three and the first, second, and third codon positions of mitochondrial (MTE/MTE1/MTE2/MTE3) and plastid (PTE/PTE1/PTE2/PTE3) protein-coding genes, respectively.
P < 0.05, ** P < 0.01—significance levels.