Table 1.
Key components in auxin regulation of stem cells and flower production
| Biological role | Gene name | Functional description |
| Stem cell signaling | CLV1 | CLE receptor, represses WUS expression |
| CLV2/CRN | Receptor/pseudokinase pair, regulates flower outgrowth | |
| CLV3 | CLE ligand in stem cells | |
| WUS | Represses differentiation and promotes stem cell division | |
| STM | Promotes meristematic identity | |
| Auxin response factors | ARF3 (ETT) | Repressor ARF (class B), auxin receptor |
| ARF5 (MP) | Activator (class A) ARF | |
| Auxin transport | PIN1 | Auxin efflux carrier |
| Auxin biosynthesis | TAA | Catalyses first step in auxin biosynthesis |
| YUC | Catalyses rate-limiting auxin biosynthesis step | |
| Floral regulators | LFY | Promotes floral identity, regulates initiation and outgrowth together with auxin transport |
| ANT/AIL6 | Promote floral identity, regulates initiation and outgrowth together with auxin transport | |
| DRN/DRNL/PUCHI | Promote floral identity by LFY activation, involved in initiation by activating ANT/AIL6 with ARF5 | |
| SVP/AGL24/SOC1 | Promote inflorescence identity early in floral development and floral identity through LFY activation |