Table 2.
Comparison between rice and Arabidopsis pollen-expressed transcription factors.
| Rice | Arabidopsis | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Family | NC | NWG | NGC | pollen | NWG | NGC | pollen | ||
| No. | % | No. | % | ||||||
| ABI3VP1 | 5 | 52 | 48 | 24 | 50 | 11 | 11 | 4 | 36 |
| Alfin-like | 2 | 9 | 9 | 5 | 56 | 7 | 7 | 6 | 86 |
| AP2-EREBP | 17 | 164 | 146 | 63 | 43 | 138 | 125 | 43 | 34 |
| ARF | 4 | 25 | 25 | 8 | 32 | 23 | 19 | 8 | 42 |
| ARID | 1 | 5 | 5 | 2 | 40 | 7 | 6 | 6 | 100 |
| ARR-B | 8 | 8 | 1 | 13 | 15 | 12 | 6 | 50 | |
| AtRKD | - | - | - | 5 | 2 | 2 | 100 | ||
| BBR/BPC | - | - | - | 7 | 6 | 5 | 83 | ||
| BES1/BZR | 1 | 6 | 6 | 3 | 50 | 6 | 5 | 4 | 80 |
| bHLH | 8 | 144 | 133 | 51 | 38 | 164 | 112 | 42 | 38 |
| bZIP | 9 | 85 | 80 | 25 | 31 | 73 | 67 | 34 | 51 |
| C2C2 | 6 | 81 | 78 | 27 | 35 | 103 | 83 | 31 | 37 |
| C2H2 | 19 | 102 | 97 | 54 | 56 | 212 | 162 | 102 | 63 |
| C3H | 5 | 66 | 65 | 33 | 51 | 167 | 125 | 80 | 64 |
| CAMTA | - | - | - | 6 | 6 | 6 | 100 | ||
| CCAAT | 8 | 45 | 44 | 18 | 41 | 35 | 32 | 20 | 63 |
| CPP | 2 | 11 | 11 | 5 | 45 | 8 | 6 | 4 | 67 |
| CSD | 2 | 2 | 1 | 50 | - | - | - | ||
| DBP | 6 | 6 | 4 | 67 | - | - | - | ||
| DDT | 6 | 6 | 5 | 83 | - | - | - | ||
| G2-like | 2 | 46 | 46 | 11 | 24 | 40 | 36 | 17 | 47 |
| GeBP | 2 | 6 | 5 | 2 | 40 | 16 | 7 | 6 | 86 |
| GRAS | 9 | 54 | 49 | 20 | 41 | 33 | 32 | 16 | 50 |
| GRF | 9 | 9 | 1 | 11 | 9 | 8 | 4 | 50 | |
| HB | 11 | 91 | 83 | 32 | 39 | 91 | 84 | 31 | 37 |
| HMG | 9 | 9 | 4 | 44 | - | - | - | ||
| HRT | 1 | 1 | 1 | 1 | 100 | 3 | 3 | 3 | 100 |
| HSF | 1 | 25 | 25 | 6 | 24 | 21 | 21 | 6 | 29 |
| Jumonji | 1 | 15 | 15 | 8 | 53 | 5 | 5 | 5 | 100 |
| LFY | 1 | 1 | 1 | 100 | - | - | - | ||
| LIM | 6 | 6 | 3 | 50 | - | - | - | ||
| LUG | 6 | 5 | 1 | 20 | - | - | - | ||
| MADS | 19 | 64 | 59 | 44 | 75 | 109 | 79 | 30 | 38 |
| MYB | 13 | 121 | 118 | 51 | 43 | 131 | 123 | 43 | 35 |
| MYB-like | 14 | 77 | 69 | 32 | 46 | 67 | 56 | 37 | 66 |
| NAC | 4 | 123 | 116 | 51 | 44 | 96 | 88 | 32 | 36 |
| Orphans | 1 | 132 | 106 | 45 | 42 | 2 | 2 | 1 | 50 |
| PHD | 3 | 49 | 49 | 20 | 41 | 11 | 10 | 9 | 90 |
| PLATZ | 12 | 12 | 3 | 25 | - | - | - | ||
| Pseudo ARR-B | 5 | 5 | 1 | 20 | - | - | - | ||
| RAV | - | - | - | 11 | 10 | 2 | 20 | ||
| REM | - | - | - | 21 | 14 | 3 | 21 | ||
| RWP-RK/NLP | 1 | 12 | 12 | 5 | 42 | 9 | 9 | 4 | 44 |
| S1Falike | 2 | 2 | 2 | 100 | - | - | - | ||
| SBP | 19 | 17 | 4 | 24 | 16 | 15 | 5 | 33 | |
| SET | 2 | 31 | 30 | 20 | 67 | 46 | 40 | 36 | 90 |
| SNF2 | 36 | 33 | 18 | 55 | - | - | - | ||
| TAZ | 5 | 5 | 1 | 20 | - | - | - | ||
| TCP | 4 | 22 | 21 | 10 | 48 | 26 | 20 | 10 | 50 |
| Trihelix | 19 | 17 | 5 | 29 | 29 | 27 | 16 | 59 | |
| TUB | 6 | 14 | 14 | 6 | 43 | 10 | 10 | 9 | 90 |
| ULT | 2 | 2 | 2 | 100 | - | - | - | ||
| VOZ | - | - | - | 2 | 2 | 1 | 50 | ||
| Whirly | - | - | - | 3 | 3 | 3 | 100 | ||
| WRKY | 6 | 97 | 89 | 20 | 22 | 72 | 62 | 33 | 53 |
| zf-HD | 2 | 15 | 12 | 7 | 58 | 15 | 14 | 3 | 21 |
| ZIM | 16 | 16 | 6 | 38 | 2 | 1 | 1 | 100 | |
| Total | 189 | 1959 | 1827 | 772 | 42 | 1883 | 1567 | 769 | 49 |
NC, number of transcription factors (TFs) conserved in rice and Arabidopsis pollen; NWG, number of diverse TFs transcripts in whole genome; NGC, number of diverse TFs transcripts in the Genechip. "-", indicating undetectable expression of the corresponding genes in Arabidopsis or rice pollen. Data for Arabidopsis pollen-expressed TFs gens were from Honys and Twell (2004). For details, see Additional file 9.