Table 1 Genes and trans-factors underlying shoot meristem to flower transition during plant development
S.N. | Genes | Types | Functions | References |
|---|---|---|---|---|
1 | KNOX | Transcription factor | Regulation of meristem identity in plants (monocots and dicot); Activation/repression of GA-synthesis genes | |
2 | CLAVATA1(CLV1) | Receptor-like kinase | Maintenance of an equilibrium between cell enlargement and organ development; Regulation of apical/floral meristem determinacy | |
3 | CLAVATA 3 (CLV3) | Peptide | Binding with the receptor-like kinase CLV1 as its ligand; Restricts WUS expression | |
4 | AUXIN-BINDING PROTEIN 1 (ABP1) | Auxin binding protein | ABP1- TMK1 complex formation for auxin perception; Maintenance of asymmetric growth at floral primordial region | |
5 | RHO OF PLANTS 6 (ROP6) | Plasma membrane associated small GTPase | Regulation of cellular processes; Maintenance of asymmetric growth under the influence of auxin | [75] |
6 | SEPALLATA 3 (SEP3) | MADS-domain transcription factor | Interaction with floral genes AG and AP3; Regulation of floral organ formation | [98] |
7 | ROP-INTERACTIVE CRIB MOTIF-CONTAINING PROTEIN 1 (RIC1) | CRIB-containing ROP effector | Regulator of ROP6 gene; Maintenance of asymmetric growth under the influence of auxin | [99] |
8 | APETALA 1 (AP1) | MADS-domain transcription factor | Chromatin remodelling; Regulation of flower initiation | |
9 | WUSCHEL (WUS) | Homeodomain transcription factor | Stem cell activity in meristematic regions; Regulation of  floral meristem determinacy | [65] |
10 | LEAFY (LFY) | Transcription factor | Regulation of floral meristem identity; Activator of AG, AP3 and AP1 genes |