Table 2.
Comparison of Phenotypes Obtained by Cosuppression and Transposon Insertion Mutagenesis
| Gene | Cosuppression Phenotype and References | Alleles from This Study | Phenotype |
|---|---|---|---|
| FBP1 | Homeotic conversion of petals to sepals and stamens to carpels (Angenent et al., 1993) |
fbp1-1, fbp1-2 | Sepal-like tissue at outer edge of corolla midribs, stamen filaments not fused with petal tube |
| FBP2 FBP6a | Green corolla, strongly reduced in size, stamens replaced by green sepaloid structures, reduced or absent development of gynoecial whorl; indeterminacy in the axils of the carpels; development of a new inflorescence originating from the fourth whorl (Angenent et al., 1994; Ferrario et al., 2003) |
fbp2-1, fbp2-2 | Light green corolla with sepal-like epidermal cells, indeterminacy in the third whorl; development of two to three secondary inflorescences arrested early in development |
| FBP5a | fbp5-1 | No phenotype | |
| FBP11 | Ovules replaced by carpeloid organs (Angenent et al., 1995) |
fbp11-1 | No phenotype |
| FBP7a | fbp7-1, fbp7-2 | No phenotype | |
| PFG | Plants are nonflowering, remaining in the vegetative state (Immink et al., 1999) |
pfg-1 | No phenotype |
| FBP26a | fbp26-1 | No phenotype |
a
Additional genes that were shown to be downregulated in the cosuppression transgenic lines.