Table 1.
Number of predicted transporter genes in the genomes of Arabidopsis, poplar, rice, and Chlamydomonasa
| A. thaliana | P. trichocarpa | O. sativa | C. reinhardtii | |
|---|---|---|---|---|
| Predicted proteome size | 31,711 | 58,036 | 26,841 | 14,598 |
| Cation transporters | ||||
| KcsA type | 1 | 0 | 0 | 0 |
| Shaker type | 9 | 11 | 6 | 0 |
| TPK/KCO | 5 | 10 | 4/3 | 0 |
| Unclassified 6TM1P | 0 | 0 | 0 | 9 |
| CNGC | 20 | 12 | 10 | 0 |
| TPC | 1 | 1 | 1 | 0 |
| HKT | 1 | 2 | 6 | 0 |
| KUP/HAK | 13 | 28 | 25 | 3 |
| Anion channels | ||||
| CLC | 7 | 8 | 5 | 5 |
| SLAC | 5 | 4 | 7 | 1 |
| ALMT | 13 | 22 | 8 | 0 |
| Calcium channels | ||||
| VDCC | 0 | 0 | 0 | 9 |
| Ins-3P–R | 0 | 0 | 0 | 1 |
| GluR (plant type) | 20 | 61 | 13 | 0 |
a
The predicted proteomes were screened with HMMer profiles (188) made from homology-reduced sets of representative proteins of each family. See text for abbreviations of family names. The results are affected by differences in sequence coverage and quality of gene predictions between species.