Table 1.
Gene Names and Associated Loss-of-Function Trichome Phenotypes for Many Known Mutants (Only Trichome Phenotypes Are Listed).
| Gene | Name | Loss-of-function phenotype | Reference |
| GL1 | GLABROUS1 | No trichomes | (Oppenheimer et al., 1991) |
| GL2 | GLABRA2 | Aborted trichomes | (Rerie et al., 1994) |
| GL3 | GLABRA3 | Less branched | (Payne et al., 2000) |
| EGL3 | ENHANCER OF GLABRA3 | Less branched | (Zhang et al., 2003) |
| GL3 EGL3 | No trichomes | (Zhang et al., 2003) | |
| TTG1 | TRANSPARENT TESTA GLABRA1 | No trichomes | (Walker et al., 1999) |
| TTG2 | TRANSPARENT TESTA GLABRA2 | Less branched | (Johnson et al., 2002) |
| MYB23 | ATMYB23 | Less branched | (Kirik et al., 2005) |
| TRY | TRIPTYCHON | Extra branched/clusters | (Schellmann et al., 2002) |
| CPC | CAPRICE | More trichomes | (Wada et al., 1997) |
| TRY/CPC | Larger clusters | (Schellmann et al., 2002) | |
| ETC1 | ENHANCER OF TRY AND CPC1 | Larger TRY/CPC clusters | (Kirik et al., 2004a) |
| ETC2 | ENHANCER OF TRY AND CPC2 | Larger TRY/CPC clusters | (Kirik et al., 2004b) |
| HDG11 | HOMEODOMAIN GLABROUS11 | Extra branched | (Nakamura et al., 2006) |
| HDG12 | HOMEODOMAIN GLABROUS12 | Enhances hdg11 | (Nakamura et al., 2006) |
| SPK1 | SPIKE1 | Unbranched | (Qiu et al., 2002) |
| CPR5 | CONSTITUTIVE PATHOGENE RESPONSE5 | Smaller | (Kirik et al., 2001) |
| YRE | YORE-YORE | Smaller | (Kurata et al., 2003) |
| ADL1 | ARABIDOPSIS DYNAMIN-LIKE1 | Less branched | (Kang et al., 2003) |
| SIM | SIAMESE | Multi-cellular | (Churchman et al., 2006) |
| PYM | POLYCHOME | Extra branched | (Hase et al., 2006) |
| KAK | KAKTUS | Extra branched | (Downes et al., 2003) |
| SPY | SPINDLY | Extra branched | (Perazza et al., 1998) |
| AN | ANGUSTIFOLIA | Less branched | (Folkers et al., 2002) |
| SCD1 | STOMATAL CYTOKINESIS-DEFECTIVE 1–1 | Unbranched | (Falbel et al., 2003) |
| CYCA2;3 CYCLINA2;3 | Less endoreduplication | (Imai et al., 2006) | |
| SPI | SPIRRIG | Distorted | (Saedler, 2005) |
| SAC1 | SUPPRESSOR OF ACTIN1 | Smaller | (Zhong et al., 2005) |
| MUR2 | MURUS2 | Reduced papillae | (Vanzin et al., 2002) |
| STI | STICHEL | Unbranched | (Ilgenfritz et al., 2003) |
| CSP1 | CELL SHAPE PHENOTYPE | Less branched | (Chary et al., 2008) |
| SAD2 | SENSITIVE TO ABA AND DROUGHT2 | Fewer trichomes | (Gao et al., 2008) |
| HYP6 | HYPOCOTYL6 | Smaller | (Sugimoto-Shirasu et al., 2002) |
| RHL2 | ROOT HAIRLESS2 | Smaller | (Sugimoto-Shirasu et al., 2002) |
| TBR | TRICHOME BIREFRINGENCE1 | No birefringence | (NIta, 2005) |
| BRT1 | BRIGHT TRICHOME1 | Highly fluorescent | (Sinlapadech et al., 2007) |
| SHV3/SVL1SHAVEN3/SHV3-LIKE1 | Collapsed | (Hayashi et al., 2008) | |
| LEFTY1 LEFTY1 | Less branched | (Abe et al., 2004) | |
| ZWI | ZWICHEL | Less branched (swollen) | (Oppenheimer et al., 1997) |
| LEFTY2 | LEFTY2 | Less branched | (Abe et al., 2004) |
| KIC | KCBP-INTERACTING CA2+ BINDING PROTEIN | Less branched | (Reddy et al., 2004) |
| FRA2 | FRAGILE FIBER2 | Less branched | (Burk et al., 2001) |
| KIS | KIESEL | Less developed | (Kirik et al., 2002) |
| MYO XIK MYOSIN XIK | Smaller | (Ojangu et al., 2007) | |
| PIR | PIROGI | Distorted | (Basu et al., 2004) |
| CRK | CROOKED | Distorted | (Mathur et al., 2003b) |
| WRM | WURN | Distorted | (Mathur et al., 2003a) |
| DIS1 | DISTORTED1 | Distorted | (Mathur et al., 2003a) |
| DIS2 | DISTORTED2 | Distorted | (El-Din El-Assal et al., 2004) |
| GRL | GNARLED | Distorted | (El-Assal Sel et al., 2004) |
| DIS3 | DISTORTED3 | Distorted | (Basu et al., 2005) |
| MYB106 | MYB106 (NOEK: NOK) | Extra branched | (Jakoby et al., 2008) |
| HDG2 | HOMEODOMAIN GLABR2 | Less developed cell wall | This study and Nakamura et al. (2006) |
| PEL3 | PERMEABLE LEAVES3 | Some tangled | This study and Tanaka et al. (2004) |
| BLT | BRANCHLESS TRICHOME | Unbranched | This study |
| SVB | SMALLER WITH VARIABLE BRANCHES | Less developed | This study |