It's called satire. We're making fun of you.
My point is that the "Triangle of U" issue in the cabbage genus and its various species demonstrates that an extremely stable genotypic base remains beneath the hybrids and that while cauliflower and broccoli may be bred to produce broccoflower, they cannot be bred to produce broccorabbit or a new species of elm.
There are all sorts of variants on broccoli and cauliflower. They grow a very different variant in Europe. There are Brussels sprouts - where do those fit in? Turnips?
I have no idea what you mean by 'stable genotype base'. All the 'triangle of U' claims is that the Brassicas originally derived from three geographically isolated species that were nonetheless interfertile; but since then polyploidy and hybridization have made the whole genus incredibly complex.
Oh, I know it's intended that way.
But the kind of jokes a person makes reveal much about their character and their beliefs.
There are all sorts of variants on broccoli and cauliflower. They grow a very different variant in Europe.
The Italian variant tastes much better.
since then polyploidy and hybridization have made the whole genus incredibly complex
Well the remarkable thing is that it is not incredibly complex - it is reducible to just three closely related genotypes and is therefore rather incomplex genetically while seemingly very complex phenotypically.
All this variety is not due to radical mutations creating utterly disparate genotypes - but to hybridization of just three types.