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Summary statistics of lettuce and Arabidopsis genes within each flowering time regulatory pathway.
| Pathways | Genes in lettuce | Genes in Arabidopsis |
| Vernalization and autonomous | 30 | 27 |
| Ambient temperature | 5 | 7 |
| Photoperiodism and circadian clock | 171 | 110 |
| Gibberellic acid | 37 | 28 |
| Aging | 18 | 22 |
| Sugar | 24 | 9 |
| Floral integrator | 17 | 8 |
| Flower development and meristem identity | 25 | 9 |
| General | 168 | 117 |
| Two pathways | 48 | 73 |
| Three pathways | 17 | 18 |
| Four pathways and above | 2 | 3 |
