Table 3.
Association between changes in gene copy number and changes in transcript abundance of C4-related gene families in Alloteropsis
| Gene family |
Copy number
range |
Transcript abundance
range a |
P-value b |
|---|---|---|---|
| Alanine aminotransferase (ALA-AT) | 1–2 | 0–1838 | 0.08 |
| Aspartate aminotransferase (ASP-AT) | 1–2 | 9–2632 | 0.48 |
| Carbonic anhydrase (CA) | 1–3 | 3–13169 | 0.46 |
| Dicarboxylate transporter (DIT) | 1 | 0–342 | – |
| NAD-malate dehydrogenase (NAD-MDH) | 1–4 | 21–1528 | 0.11 |
| NAD-malic enzyme (NAD-ME) | 1–2 | 12–162 | 0.57 |
| NADP-malate dehydrogenase (NADP-MDH) | 1 | 15–3537 | – |
| NADP-malic enzyme (NADP-ME) | 1–3 | 0–5746 | 0.56 |
| PEP carboxykinase (PCK) | 1–3 | 11–5187 | 0.002 |
| PEP carboxylase (PEPC) | 1–5 | 0–11153 | < 0.001 |
| Pyruvate phosphate dikinase (PPDK) | 1–2 | 0–12796 | 0.82 |
| PEP-phosphate translocator (PPT) | 1–2 | 19–2593 | 0.62 |
| Sodium bile acid symporter (SBAS) | 1 | 17–7105 | – |
| Triosephosphate-phosphate translocator (TPT) | 1–2 | 8–3213 | – |
a In RPKM; retrieved from Dunning et al. (2017);
b P-values were obtained using a phylogenetic generalized least squares (PGLS) fitting under a Brownian model of character evolution; gene families lacking P-values do not show copy number variation, or contain representatives with no gene sequence available for the phylogenetic analysis.