Table 1.
Total number of actin genes in organisms representing major plant groups.
| Organism | Number of actin genes | |
|---|---|---|
| Algae |
Volvox carteri and Chlamydomonas reinhardtii |
2 |
|
Porphyra purpurea and Palmaria palmata |
2–3 | |
| Moses | Physcomitrella patens | 10 |
| Lycopsida | Selaginella moellendorffii | 2–3 |
| Gymnosperms | Pinus taeda | 10 |
| Monocots | Sorghum bicolor | 10 |
| Zea mays | 21 | |
| Oryza sativa | 8–10 | |
| Dicots | Vitis vinifera | 6 |
| Populus trichocarpa | 8–9 | |
| Manihot aesculenta | 11 | |
| Arabidopsis thaliana | 8 (10) | |
| Medicago truncatula | 4 |
The numbers were estimated using public databases (NCBI, Plant Genome Database, and Phytozome). Organisms with a known genome sequence are highlighted in bold. For Arabidopsis, the total number of actin genes including probable pseudogenes is shown in parentheses.