Table I. BBX22 regulates light- and hormone-responsive genes.
A total of 207 BBX22-regulated genes were compared with genes regulated by light or plant hormones. Fisher’s exact test was used to evaluate significant enrichment under each given treatment. PHYBY276H, Tyr-to-His mutant allele of phyB; pifq, pif1345 quadruple mutant; 35S:MIF1, MINI ZINC FINGER overexpressor; Wc, continuous white; Rc, continuous red; FRc, continuous far-red; Bc, continuous blue; IAA, indole-3-acetic acid; MJ, methyl jasmonate; ABA, abscisic acid; ACC, 1-amino-cyclopropane-1-carboxylic acid; CK, cytokinin.
| Treatment | ATH1 | BBX22 Regulated | P | Reference |
| % | ||||
| cop1-like | 14.7 | 70.0 | 7.2 × 10−71 | |
| PHYBY276H | 13.1 | 63.8 | 2.7 × 10−63 | Hu et al. (2009) |
| pifq | 4.5 | 30.0 | 1.1 × 10−32 | Leivar et al. (2009) |
| 35S:MIF1 | 0.5 | 3.9 | 1.4 × 10−5 | Hu and Ma (2006) |
| Light | 27.2 | 83.1 | 1.6 × 10−62 | |
| Wc | 15.7 | 61.8 | 2.3 × 10−50 | Jiao et al. (2005); Chang et al. (2008) |
| Rc | 17.2 | 70.0 | 4.6 × 10−62 | Jiao et al. (2005); Leivar et al. (2009) |
| FRc | 8.2 | 42.0 | 5.6 × 10−39 | Jiao et al. (2005) |
| Bc | 11.8 | 42.0 | 1.0 × 10−27 | Jiao et al. (2005) |
| High light | 6.4 | 36.7 | 1.3 × 10−36 | Kleine et al. (2007) |
| Hormone | 20.5 | 41.5 | 9.0 × 10−12 | |
| IAA | 3.5 | 14.0 | 3.3 × 10−10 | Nemhauser et al. (2006) |
| BR | 4.0 | 13.0 | 1.2 × 10−7 | Lisso et al. (2005); Nemhauser et al. (2006); Song et al. (2009) |
| GA | 0.5 | 1.4 | 0.11 | Nemhauser et al. (2006) |
| MJ | 6.7 | 18.4 | 1.7 × 10−08 | Nemhauser et al. (2006) |
| ABA | 12.9 | 24.6 | 5.6 × 10−6 | Nemhauser et al. (2006) |
| ACC | 2.4 | 14.0 | 4.6 × 10−14 | Nemhauser et al. (2006) |
| CK | 2.2 | 4.8 | 0.027 | Nemhauser et al. (2006) |