I think I understood the basic principles of the ABC-Model (for example that there are only Sepals and Carpels if there is a mutation in B function genes) but now I have to use this model to explain some mutations that I don't understand:
- "A mutant tomato developes fruits but has no sepals, instead petals in its first sector."
My thoughts about this: If it has fruits, it means that at least C (for carpels) works. It has no sepals, so there must be a mutation in genes for A. But I read that A and C are antagonists, so if there is no A, C takes its place which would result in Carpel, Stamina, Stamina, Carpel. So how can there be Carpels and Petals but no Sepals?
- "A mutant tomato can't develope carpels but can develop ovules."
How can that happen? I read that the ABCD model says that you need both, C and D for ovules!?
Can someone help me or knows a source where I can find out how this works? The articles I've read until now didn't help me with that.